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JavaScript - Problem Linking With Arrays, For And If Loops
Hello everyone
I am having trouble with a project i am supposed to be doing which is to turn structured English into coding joined with the code i am about to post !! This is the code i have written so far that works: var contestantNamesArray = ['Tom and Nazia', 'Pat and Dan', 'Sandra and Kofi', 'Ian and Adele', 'Paul and Costas']; var judgesPointsArray = [2,1,5,4,3]; var audiencePointsArray = [4,5,2,3,1]; var combinedPointsArray = new Array (5) for (var couple = 0; couple < combinedPointsArray.length; couple = couple + 1) { combinedPointsArray[couple] = judgesPointsArray[couple] + audiencePointsArray[couple]; } var maxCombinedPoints = 0; for (var couple = 0; couple < combinedPointsArray.length; couple = couple + 1) { if (combinedPointsArray[couple] > combinedPointsArray[maxCombinedPoints]) { maxCombinedPoints = couple; } } document.write('The maximum number of points was ' + combinedPointsArray[maxCombinedPoints] + '<BR>'); document.write('The couple(s) scoring the maximum were' + ':' + '<BR>'); Now with that code there i have just posted, I am supposed to take this structured English below and combine them together but cannot work out how to link or code it to get it to work. write out a heading for the list of couples scoring the maximum declare a variable to keep count of how many couples scored the maximum value and initialise it to zero for each couple if this couple scored the maximum write out the couple's names increase the count of couples who scored the maximum value end if if a dance-off is required write out that a dance-off is required else write out that a dance-off is not required end if end for I have tried myself but i am stuck at how to link the contestantNamesArray with the rest of the code in order to be able to display the couples who scored the maximum points and store it in a new variable and then write out the names. Sorry if i have posted wrongly this is my first time and i am a new learner to JavaScript trying to learn basics. Thank you anyone in advance and if you need any further information i will provide anything you need. Gary Similar TutorialsI am working on making 2 for loops of 2 arrays to get the total of them. Then I need to get the average heights. This is for a test, yet I have not got a clue, so I need clues as I cant get it to work and I am a new coder to javascript. Code: var heights = [15,16,17,18,19];
var numbers = [2,1,6,4,2];
var average = new Array(5);
average = 0
for (var heights = 0; heights <= 5; heights = heights+ 1)
{
total = 0
}
for (var numbers = 0; numbers <= 5; numbers = numbers + 1)
{
total = 0
average = heights / numbers;
}
document.write('The average height is ' + average);
Am I on the right road? I need to use this format and not functions. I have got 2 for statements but maybe I could do this with one, it is so tricky this javascript. I am looking to get a loop which runs through a series of divs (each with an attribute called "position" followed by 5 comma separated values). for each of these divs i need the 5 comma separated values (from position) to be assigned to variables. I have the rest of the code sorted out i just cannot get the original variables. Examples: divs look like this... Code: <div position="100,100,50,50,1"></div> There are no limits on the number of these divs but there will never be 0. What i want is something to look like this. For each div, var s = string of attribute (position) values (output:a,b,c,d,e) split string to create var a = a var b = b var c = c var d = d var e = e I from those 5 vars can do what i need. and i know that vars a,b,c,d,e,s will all be overwritten in when it comes to the next div... that is planned. How does my array look so far? thanks I think so what i was supposed to do was insert a script element that contains the function amountTotal() then add commands to the function such as 1 declare variable named total, set intial value to 0 2 create a FOR LOOP that loops all values in amount array. add current value of array item to value of total variable 3 when completed return value of total variable This is what I came up with tell me if this makes sense Thanks Quote: title>The Lighthouse</title> <link href="lhouse.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="list.js"></script> <script type="text/javascript"> function amountTotal() { totalAmount=0; for(var i=0; i<amountTotal.length; i++){ total+=amount(i); { return total; } </script> </head> Does this seem right or is my format all wrong? if so what should i have instead? thanks I've now got to form an average of snowfall inputs, taken from looped prompts, however I'm not allowed to use arrays or functions... Almost every example I see uses arrays, such as this one he http://www.codingforums.com/showthread.php?t=4313 Is it possible to not use arrays to form the average? Please describe how to do this in general terms, as was highlighted in that link ^^^ I want to learn, not copy, although one can be derived from the other... What I haveso far, assume all vars have been announced. Code: for (var d=1; d<=numofinputs; d=d+1)
{
input = prompt("Enter a data input" + d)
}
Is it possible I'm attempting this in too general a manner? ie, running before I can walk. I am having an issue with this script I wrote. Actually it works the way it is now, but not the way I want it too. This is a random raffle ticket number generater. The guys at the fire department where talking about selling 300 tickets and discussing how they were going to select and call the numbers. It got me thinking and inspired to start messing around with javascript again. It all starts with index.html and a form w/ a button and textarea. When a user clicks the button it will generate a random number and insert it into the textarea. This is accomplished by the Generate(); function that is in Genny.js an external js file. Code: <h2>Raffle Ticket Number Generator</h2> <form name="theform"> <input type="button" name="pickNumber" value="Pick a Winner" onclick="Generate();" /> <br /><br /> <textarea cols="40" rows="25" name="winnersCircle">Winning Numbers Will Display Here! </textarea> </form> This much works just fine. Now onto Genny.js Code: //initialize counter and array
count = 1;
winners = new Array();
function Generate(){
//generate a random number from 0-300
var random_number = Math.floor(Math.random()*301);
//checks output of Math.random() against winners array to see if number has been used already
for (i = 0; i < winners.length; i++ ) {
if ( winners[i] == random_number )
alert("I am so sorry... we have accidently drawn a duplicate number! Please pick again.");
}
//add the number to the array
winners[count] = random_number;
//increment the counter
count++;
//display the stored random number
document.theform.winnersCircle.value = winners.join("\n");
}
This much works...somewhat! It generates the random number and checks the winners array to see if it is already used. If it wasn't used it adds the number to the array, increments the counter, and then displays the number in the textarea of the form, as it should. If the number was used it alerts the user, once the user clicks the button to accept the alert it carries on with the script and adds it to the array again and also displays it. This is not what I want it to do. If the number was used I do not want it added to the array or displayed. I would also like it to regenerate another number without the alert. The alert was wrote in to assist me in checking to see if it was finding a duplicate number, thats all. As an extra, is there a way to also add a numbered list to the results. To show the sequence of the ticket draw. I have messed with this for days and rewrote it over and over. I have used different loops and conditional operators to try and solve this problem. But to no avail. Here I am, asking not for the answer but a push in the right direction. Any help would be great, this is becoming an obsession trying to make it work. The code above is the last attempt at this point. Everything else has returned no values or just errors. Thanks in advance! I am doing practice problems for class (not homework), and I've gotten most of the coding down except for one stipulation. The exercise reads: "Write a program that reads input of the number of hours an employee has worked and displays the employee's total and average (per day) number of hours. The company doesn't pay overtime, so cap any day at 8 hours. Sample Run: How many days? 3 Hours? 6 Hours? 12 Hours? 5 Employee's total paid hours = 19 Employee’s average paid hours = 6.3333333" I can't figure out how to include the bolded stipulation. I've tried adding: Code: if ( sum >8 ) {
sum = 8;
}
but I know that isn't right, and I can't think of any other solution. Can someone advise me on my work? Code: public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.println("How many days worked? ");
int count = keyboard.nextInt();
int i = 1;
int sum = 0;
while (i <= count) {
System.out.println("Hours? ");
sum += keyboard.nextInt();
i++;
}
System.out.println("Employee's total paid hours= " +sum);
System.out.println("Employee's average paid hours= " +(double)sum/count);
}
}
Also! If anyone can explain to me why there has to be an initialization of " int sum = 0 ", that would be great. I just know I have to include it for this loop. Hi everyone. I have a loop question. This is my assignment for my Comp Apps class. The whole thing is a store selling guitar picks. What I'm missing now is a loop. After the costumer places the order, he has the choice to go back and buy more or complete the order. In the end all the order the costumer placed adds up to the total. This is what I have so far: PHP Code: <script type="text/javascript"> var name = prompt("Welcome to Pick Center. Please enter your name", " "); alert("Hello " + name + "! Please look through our list of picks before placing your order."); var product = prompt("What would you like to buy?", ""); var quantity = prompt("How many " + product + " would you like to order?", ""); var confirming = confirm(""+ name + " you ordered " + quantity +" " + product +" picks. Is this correct?"); var price = " "; var item_discount = " "; if ( confirming == true ) { } else { alert("Refresh the page to reload and place a new order.")} if ( product == "dirtbag" ) { price = "5"; item_discount = "0.3";} else if ( product == "delrin" ) { price = "7"; item_discount = "0.2";} else if ( product == "speedpick" ) { price = "10"; item_discount = "0.5";} else if ( product == "stubby") { price = "25"; item_discount = "0.25";} else { alert("Sorry," + name + ". You entered an invalid product. Refresh the page to reload and place the order again.");} var cost_of_order = price * quantity; var discount = price * item_discount * quantity; var total = cost_of_order - discount; document.write("<br><h1> Your Order: </h1></br><br>"); document.write("Thank you for placing an order with us, <b>" + name + "</b>.<br><br>"); document.write("The cost of buying " + quantity + " " + product + " picks is <b>$" + cost_of_order + "</b>.<br><br>"); document.write("The discount for this purchase is <b>$" + discount + "</b>.<br><br>"); document.write("With discount, your total order cost is <b>$" + total + "</b>.<br><br>"); </script> I've tried reading around and I bought a couple of books but I just can't get a grasp on loops. Can someone please help me with this? Hello, I have a problem with the following code! I want to use it so that customers check a checkbox under each photo they want, in a photo gallery, and when they finish, they can click and the photos they checked appear using document.write in a new page! The problem I have is that when the script finds the first image, it uses document.write, shows only the first image it finds and then ends the foor loop! How can I code it so that it finds all the photos first and then shows them in the new page! Here is the sample code, sorry for my bad English and thanks for your time! -------------------------------------------------------------------------- <script type="text/javascript"> function findphotos(test){ for (i=0; i<document.test.checkgroup.length; i++){ if (document.test.checkgroup[i].checked==true){ document.write('<img src="'+i+'.jpg">'); } } } </script> <form name="test"> <input type="checkbox" name="checkgroup" /> <input type="checkbox" name="checkgroup" /> <input type="checkbox" name="checkgroup" /> </form> <h1 onclick="javascript:findphotos(test)">Find</h1> Hey, I'm working on a problem and what I need the program to do is to add up the numbers in the array NOT add up how many numbers there are. There are 5 total numbers that a user will input. The counting of the numbers will be in a seperate method which will then return to the main. Then be displayed through system.out.println. I don't know where I am going wrong any help? Thanks! Code:
import javax.swing.*;
import java.util.*;
public class Question10 {
public static void main (String []args) {
//declares
Scanner keyboard = new Scanner(System.in);
int [] myNums = new int[5];
for (int i=0; i < myNums.length; i++) {
System.out.println ("Please Enter Data");
myNums[i]= keyboard.nextInt();
}
} //end main
public static int getTotal(int inArray) {
int a,b,c,d,e,f;
f = a+b+c+d+e;
return f;
}
}//end class
Im working on a program where the user enters a line of numbers and then can either sort them in order or can display the minimum number. Both those seem to work, but for some reason I keep getting three -1 values in my array. So the minimum value is always -1 and when I sort it comes back -1-1-1[numbers i enter]. I cant seem to figure out why my code is doing that. Code:
private int[] buildArray(String line) {
int[]arr = new int[line.length()];
arr[0] = 0;
for (int i = 1; i < line.length(); i++){
arr[i] = Character.digit(line.charAt(i),10);
}
return arr;
}
private int findMin(int numbers[]) {
//PRE numbers.length >= 1
int min = numbers [0];
for (int i = 1; i < numbers.length; i++){
if (numbers [i] < min) {
min = numbers [i];
}
}
return min;
}
private String makeString(int numbers[]) {
//PRE numbers.length >= 1
int i = 0;
String s1 = new String ("");
while (i < numbers.length){
s1 = numbers[i] + s1;
i++;
}
return s1;
}
private void sort(int numbers[]) {
for (int i = 1; i< numbers.length; i++){
int j = i-1;
int temp = numbers[i];
while (j >= 0 && temp > (numbers[j])){
numbers[j+1] = numbers[j];
j--;
}
numbers[j+1] = temp;
}
}
Input: 3,1,2,88 output: Min Value = -1 Line 1 Sorted = -1-1-101288 Any type of help would be very appreciated, Im very new to this still. I need to loop the alphabet and numbers 0-9 to initialize a few thousand arrays. This is for my site and is truly needed. http://www.thefreemenu.com I currently have every array written out and it takes up to much space in my .js file. The majority of my variables are empty but necessary and need to be there (including empty) for my site to work properly. Question is the last part Here's where I'm at. Code: var NewVarLetterOrNum = "a";
eval("_oneofseveralnames_" + NewVarLetterOrNum + "='this part works';");
alert(_oneofseveralnames_a);
This creates the variable _oneofseveralnames_a='this part works' Code: var newArrayLetterOrNum = "a";
eval("_oneofseveralnames_" + newArrayLetterOrNum + "= new Array();");
alert(_oneofseveralnames_a)
This creates the Array _oneofseveralnames_a=new Array(); and all the values in the array are null, but, now a variable like _nl_a[1]='something' can be used elsewhere because the array exists. This is all that is necessary for now because I can probably set all the variables to be blank with something like Code: i=1
while(i<=20){
_oneofseveralnames_a[i]="1-20";
i++
}
alert(_oneofseveralnames_[20]);
So now you have what I came to understand in the first few hours. Now to the hard part : ( I can't make multiple array's dynamically. I dont' know if its because I don't understand loops or arrays or what and its very fustrating. As for any answer you might be so kind as to provide, if you could dumb it down that would be greatly appreciated. Code: var newArray =new Array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z')
i=1
while(i<=26){
eval("_nl_" + newArray[i] + "= new Array();");
i++
}
alert(newArray[1]) // Is b, but
alert(_nl_b) //I can't get _nl_b to exist, I tried everything including taking away the quotes around the letters in every test
*/
var _nl_a =new Array()
var _img_a =new Array()
var _h_a =new Array()
var _r_a =new Array()
var _m_a =new Array()
var _yt_a =new Array()
var _i_a =new Array()
The above arrays are all the array _name_ parts I need but for example, a has 10 parts, a,p2_a,p3_a,.. p10_a. I need 10 pages for each letter of the alphabet and numbers 0-9 and a special all1, p2_all1 ... p10_all1. Overall 2200 arrays that need to be declared. Currently they are all written out.
/*
Hello, I am new with Javascript and running into this problem that I don't understand. I define a base class that only contains an array "elements", and a derived class that contains nothing more (for simplicity): Code: function baseClass() {
this.elements = new Array;
}
function derivedClass() {
}
derivedClass.prototype = new baseClass;
Then I create two instances of the derived class, and add two elements in each: Code: a = new derivedClass();
a.elements.push("A");
a.elements.push("B");
b = new derivedClass();
b.elements.push("C");
b.elements.push("D");
When I examine the contents of these arrays, I see that both a.elements and b.elements contain {"A","B","C","D"} ! I.e. as if the two arrays are in fact the same array! But these are two separate instances of the class, I expect two separate arrays. Note that if instead I use the base class: Code: a = new baseClass();
a.elements.push("A");
a.elements.push("B");
b = new baseClass();
b.elements.push("C");
b.elements.push("D");
then I get a.elements = {"A","B"} and b.elements = {"C","D"}, as I would expect. Could someone explain to me the problem with using the derived class? Thank you, Stephanos Hey Guys! I've previously done HTML, but now started to learn some aspects of Javascript but getting rather confused with Loops! I've done a some coding for the Loop question (probably doesn't make sense) but I was wondering if you could help me out? I'm about as confused as a cow on a Astro Turf so my code may look terrible! - For this question you will: Draw a flow chart and write a javascript function which will use a for loop and allow the user to enter the details for four students when the program is run and display the average. Assume that they equal weighting. Hint: Javascript may assume that the value received from a prompt is a string so use parseInt() to make sure the number is an integer. Here is my code: (I'm using Aptana) Code: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<meta http-equiv="Content-Type" content="text/javascript; charset=utf-8"/>
<title>Average Marks</title>
<!-- Date: 2011-10-27 -->
<head>
<script type="text/javascript">
function marks () {
var mark1 = 10;
var mark2 = 25;
var mark3 = 50;
for(var mark1 = 10; mark1<20; mark1++)
(var mark2 = 25; mark2<50; mark2++)
(var mark3 = 50; mark3<90; mark3++)
{
alert(mark1 + "<br /> ");
(mark2 + "<br /> ");
(mark3 + "<br />" );
console.log(mark1)
console.log(mark2)
console.log(mark3)
}
}
function average () {
parseInt()
}
</script>
<body onload="marks()">
</body>
</head>
</html>
P.S. I'm not using the prompt for the user to enter their details yet, as I wanted to test it with the marks already set. Regards Hello, i am new here however my knowledge is not that limited like that one guy wolf who oldMaster was helping with i read the RULES and his thread lol so my question is, i have made a for loop and in side the for loop i wrote document.write(<td>date</td>"<td class = 'amt'>amount</td>); where date, amount, firstName, and lastName, are the values of the date, amount, firstName, and lastName arrays for the index indicated by the current value of the for loop counter varible so questions : i have spent the past 3 days looking online for the correct answer document.write(<td>date</td>"<td class = 'amt'>amount</td>); ? HTML FILE Code: <title>The Lighthouse</title>
<link href="lhouse.css" rel="stylesheet" type="text/css" />
<script type = "text/javascript" src = "list.js"></script> <!-- caling the external file -->
<script type ="text/javascript">
function amountTotal(){
//i dont think we need an array made because we have called the external file called list.js which holds the arrays
//sets the variable to 0
var total = 0; //new Array("firstName", "lastName", "street", "city", "state", "zip", "amount", "date");
//that loops through all the values in the amount array, at each point in the loop add the current value of the array item to the value of the total variable
for(var i = 0; i < amount.length; i++)
{
total = total + amount[i];
}//enf forloop
//i must return the sum of all the values in the amount array
return total;
}//end of function total
</script>
</head>
<body>
<div id="title">
<img src="logo.jpg" alt="The Lighthouse" />
The Lighthouse<br />
543 Oak Street<br />
Owensboro, KY 42302<br/>
(270) 555-7511
</div>
<div id="data_list">
<!--//creates a new script -->
<script type = "text/javascript">
document.write("<table border='1' rules='rows' cellspacing='0'>");
document.write("<tr>");
document.write("<th>Date</th><th>Amount</th><th>First Name</th>");
document.write("<th>Last Name</th><th>Address</th>");
document.write("</tr>");
document.write("</table>");
for(var i = 0; i < date.length; i++)
{
if(i % 2 )
document.write("<tr>");
else
document.write("<tr class='yellowrow'>");
document.write("<td>"date"</td>"<td class = 'amt'>amount"</td>");
}//end for
</script>
</div>
<div id="totals">
<!--//this creates a script -->
<script type = "text/javascript">
//this is how to print a table to the screen only when html is inside a script
document.write(
<table border='1' cellspacing='1'>
<tr>
<th id ='sumTitle' colspan='2'>
Summary
</th>
</tr>
<tr>
<th>Contributors</th>
<th>contributions</th>
</tr>
<tr>
<th>Amount</th>
<td>$total</td>
</tr>
</table>);
</script>
</div>
</body>
</html>
THIS IS THE ARRAY LIST WHICH IS THE EXTERNAL FILE Code: firstName = new Array(); lastName = new Array(); street = new Array(); city = new Array(); state= new Array(); zip = new Array(); amount = new Array(); date = new Array() firstName[0]="Nina"; lastName[0]="Largent"; street[0]="88 Regal Lane"; city[0]="Williamsburg"; state[0]="KY"; zip[0]="40769"; amount[0]=125; date[0]="2011-09-18"; firstName[1]="Mike"; lastName[1]="Hunt"; street[1]="Da404 Barrow Street"; city[1]="London"; state[1]="KY"; zip[1]="40742"; amount[1]=75; date[1]="2011-09-18"; firstName[2]="Monica"; lastName[2]="Lang"; street[2]="743 Stawlings Drive"; city[2]="Danville"; state[2]="KY"; zip[2]="40423"; amount[2]=50; date[2]="2011-09-16"; firstName[3]="William"; lastName[3]="Mcknight"; street[3]="102 Maple Lane"; city[3]="Danville"; state[3]="KY"; zip[3]="40423"; amount[3]=150; date[3]="2011-09-15"; firstName[4]="Latrina"; lastName[4]="Hults"; street[4]="750 Whitehall Road"; city[4]="London"; state[4]="KY"; zip[4]="40742"; amount[4]=250; date[4]="2011-09-14"; firstName[5]="Danny"; lastName[5]="Shamblin"; street[5]="123 Smith Drive"; city[5]="Owensboro"; state[5]="KY"; zip[5]="42303"; amount[5]=50; date[5]="2011-09-13"; firstName[6]="Tina"; lastName[6]="Ammons"; street[6]="888 Evans Way"; city[6]="Williamsburg"; state[6]="KY"; zip[6]="40769"; amount[6]=50; date[6]="2011-09-13"; firstName[7]="Joanne"; lastName[7]="Fine"; street[7]="210 Bowling Terrace"; city[7]="Williamsburg"; state[7]="KY"; zip[7]="40769"; amount[7]=125; date[7]="2011-09-11"; firstName[8]="Charlotte"; lastName[8]="Foulk"; street[8]="109 South Road"; city[8]="Danville"; state[8]="KY"; zip[8]="40423"; amount[8]=50; date[8]="2011-09-10"; firstName[9]="Candice"; lastName[9]="Alfaro"; street[9]="108 Atwood Avenue"; city[9]="Owensboro"; state[9]="KY"; zip[9]="42303"; amount[9]=400; date[9]="2011-09-08"; firstName[10]="Kristi"; lastName[10]="Laine"; street[10]="512 North Lane"; city[10]="Williamsburg"; state[10]="KY"; zip[10]="40769"; amount[10]=225; date[10]="2011-09-08"; firstName[11]="Elisabeth"; lastName[11]="Carbone"; street[11]="381 Main Street"; city[11]="London"; state[11]="KY"; zip[11]="40742"; amount[11]=200; date[11]="2011-09-07"; firstName[12]="James"; lastName[12]="Larsen"; street[12]="212 Rawlings Way"; city[12]="Jackson"; state[12]="KY"; zip[12]="41339"; amount[12]=125; date[12]="2011-09-07"; firstName[13]="Ralph"; lastName[13]="Thornton"; street[13]="444 Smith Drive"; city[13]="Owensboro"; state[13]="KY"; zip[13]="42303"; amount[13]=100; date[13]="2011-09-07"; firstName[14]="Robin"; lastName[14]="Witt"; street[14]="78 Norland Pines"; city[14]="London"; state[14]="KY"; zip[14]="40742"; amount[14]=75; date[14]="2011-09-07"; firstName[15]="Alex"; lastName[15]="Ruiz"; street[15]="102 Sunset Road"; city[15]="Jackson"; state[15]="KY"; zip[15]="41339"; amount[15]=50; date[15]="2011-09-06"; firstName[16]="Callie"; lastName[16]="Rudy"; street[16]="3 Sunset Road"; city[16]="Jackson"; state[16]="KY"; zip[16]="41339"; amount[16]=50; date[16]="2011-09-06"; firstName[17]="Michael"; lastName[17]="Harrell"; street[17]="125 Sunset Road"; city[17]="Jackson"; state[17]="KY"; zip[17]="41339"; amount[17]=50; date[17]="2011-09-06"; firstName[18]="Edgar"; lastName[18]="Morales"; street[18]="387 North Lane"; city[18]="Williamsburg"; state[18]="KY"; zip[18]="40769"; amount[18]=250; date[18]="2011-09-05"; firstName[19]="Arlene"; lastName[19]="Lutz"; street[19]="7888 Clear View Drive"; city[19]="Danville"; state[19]="KY"; zip[19]="40423"; amount[19]=75; date[19]="2011-09-05"; firstName[20]="Earl"; lastName[20]="Holmes"; street[20]="1001 Rawlings Way"; city[20]="Jackson"; state[20]="KY"; zip[20]="41339"; amount[20]=500; date[20]="2011-09-04"; firstName[21]="Bernice"; lastName[21]="Drew"; street[21]="25 Main Street"; city[21]="London"; state[21]="KY"; zip[21]="40742"; amount[21]=150; date[21]="2011-09-04"; firstName[22]="Patrick"; lastName[22]="Granier"; street[22]="100 Atwood Avenue"; city[22]="Owensboro"; state[22]="KY"; zip[22]="42303"; amount[22]=75; date[22]="2011-09-03"; firstName[23]="Henry"; lastName[23]="Bailey"; street[23]="37 East Maple Street"; city[23]="Danville"; state[23]="KY"; zip[23]="40423"; amount[23]=50; date[23]="2011-09-03"; firstName[24]="Ginny"; lastName[24]="Rainey"; street[24]="657 Dawson Lane"; city[24]="Danville"; state[24]="KY"; zip[24]="40423"; amount[24]=50; date[24]="2011-09-03"; firstName[25]="Ginny"; lastName[25]="Rainey"; street[25]="657 Dawson Lane"; city[25]="Danville"; state[25]="KY"; zip[25]="40423"; amount[25]=75; date[25]="2011-09-03"; firstName[26]="Basilia"; lastName[26]="Lu"; street[26]="851 Flad Court"; city[26]="Jackson"; state[26]="KY"; zip[26]="41339"; amount[26]=500; date[26]="2011-09-02"; firstName[27]="Livia"; lastName[27]="Mckinnon"; street[27]="557 Ivy Avenue"; city[27]="Jackson"; state[27]="KY"; zip[27]="41339"; amount[27]=50; date[27]="2011-08-31"; firstName[28]="Kris"; lastName[28]="Levesque"; street[28]="542 Upton Avenue"; city[28]="Owensboro"; state[28]="KY"; zip[28]="42303"; amount[28]=100; date[28]="2011-08-31"; firstName[29]="Lynwood"; lastName[29]="Ingersoll"; street[29]="723 Jackson Avenue"; city[29]="Owensboro"; state[29]="KY"; zip[29]="42303"; amount[29]=500; date[29]="2011-08-30"; firstName[30]="Petronila"; lastName[30]="Damico"; street[30]="44 Stewart Street"; city[30]="London"; state[30]="KY"; zip[30]="40742"; amount[30]=250; date[30]="2011-08-30"; firstName[31]="Hugh"; lastName[31]="Warren"; street[31]="585 Lindon Court"; city[31]="Williamsburg"; state[31]="KY"; zip[31]="40769"; amount[31]=50; date[31]="2011-08-28"; firstName[32]="Tom"; lastName[32]="Thomas"; street[32]="Rigel Avenue"; city[32]="London"; state[32]="KY"; zip[32]="40742"; amount[32]=100; date[32]="2011-08-27"; firstName[33]="Steve"; lastName[33]="Bones"; street[33]="900 Lawton Street"; city[33]="Williamsburg"; state[33]="KY"; zip[33]="40769"; amount[33]=50; date[33]="2011-08-25"; firstName[34]="Jeri"; lastName[34]="White"; street[34]="Hawkes Lane"; city[34]="Owensboro"; state[34]="KY"; zip[34]="42303"; amount[34]=150; date[34]="2011-08-25"; Hello codingforums.com! Right, this is probably going but such a stupid newbie thread but here goes.. I've finally got myself into gear to start learning javascript. I've been watching video tutorials, learning from websites and simply learning by error. I understand the concept of for loops, but the whole nested thing doesn't seem to click for some reason. I thought i understood and managed to write a piece of code that constantly writes '*' across the screen. Could someone with some pretty damn good knowledge of javascript be able to walk me through step by step of my script to explain what actually is happening? It would help loads. here is the script, many thanks!! <script type="text/javascript"> var counter = 0; function writeStars(){ for(i=0;i<1;i++){ for(a=0;a<=counter;a++){ document.write("*"); } counter++ document.write("<br />"); } } setInterval("writeStars()", 200); </script> I created a For Loop and counter starts at 0, then increase in increments of 1 after each iteration of loop i run a command 1( add html code such as Code: <td>named (part)</td> <td class= 'num'>votes</td> Then create variable of named percent use totalV for value of sum parameter then i add html code of Code: <td class='num'>(percent%(</td> then i add a function named createBar(0 using race[0], name1, party1, and votes1 in parameter values this is my coding Code: for (var i=0; i < name.length; i++)
{
document.write("<tr>");
document.write("<td>" name[i] + "(" + party[i] + ")</td>");
document.write("<td class='num'>" + votes[i] + "</td>");
var percent=calcPercent(votes[i], totalV)
document.write("<td class='num'>(" + percent +"%)</td>");
createBar(party[i],percent)
document.write("</tr>");
}
document.write("</table>");
}
</script>
</head>
so any improvements or what i am missing in my functions. Hello all. I've spent a few days now browsing this forum along with guides on the net, I'm new to JS and I'm having a bit of trouble with loops. I just don't seem to get them, I was wondering if anyone had any tips or methods (the simpler the better ) for getting these learnt and done with? Would appreciate any tips Thanks Hey Guys, I'm currently a seasoned programmer who is in a programming class at my school. We're currently learning advanced JavaScript, and we're on the topic of nested loops. After teaching us about for and while loops, my teacher gave us a little puzzle to solve. It's kind of difficult to explain, but I'll give you guys my current code and what it outputs. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Word Reversal</title>
<script type="text/javascript">
var ask = prompt("How many words do you want?","");
while (ask < "1")
{
alert("You have to have at least one word!");
var ask = prompt("How many words do you want?","");
}
var num = parseInt(ask) + 1;
var final = "";
for (var i=1; i < num; i++)
{
var word = prompt("What's word " + i + "?");
final = final + "Word " + i +": " + word + "<br/>";
}
</script>
</head>
<body>
<script type="text/javascript">
document.writeln(final);
</script>
</body>
</html>
The current output, when the user wants two words, and word 1 is one and word 2 is two, comes out to be: Code: Word 1: one Word 2: two Which is great, but the only problem is, this is what the output's supposed to be: Code: Word 2: two Word 1: one I'm stumped. I've had numerous programming challenges in my life which I've solved, but I'm not sure where to go next on this one. The script is supposed to use a nested loop, but what goes in what loop to reverse the order of the user's input? I asked my teacher for help, but he told me "Ask someone else." I asked another seasoned programmer in my class, who was just about as stumped as I was, so I went back to my teacher. "Well, ask another person" he replied. And can you believe this guy has a Master's Degree of Computer Science? So I'm asking you guys: the community. I hope someone will be able to help me. On top of that, I have to help and tutor two special education students in my class on this kind of stuff during class, and they can't get the project done until I get it done, as they learn from analyzing and copying my work (which my teacher told me to do). They get upset when they have nothing to code, and they end up goofing off the entire period, or using it as a study hall. I need to get them back on track, so we can move on to the next project. Please help me with this code - it would be greatly appreciated. Thank you! Hey everyone! I am pretty new to JS and I am having a problem figuring this loops structure out - any help would be appreciated. I am trying to add a password to an html page via an external JS file. (I know this isn't an ideal solution for securing a page - I am just trying to use this for trying to understand loops.) What I am trying to do is prompt the user to enter a password before the html page loads. If the password is correct they can enter the page. If they guess wrong the user is looped back to a prompt box to try again. If they fail 3 times they should be told via an alert box and sent off somewhere else. I have tried using a for & do while loop and was unsuccessful. I think this is the best way to go. This is what I have so far: Code: var password = prompt('All women a ',' ');
var pass1 = "Psycho";
var counter = 0;
if (counter < 3) {
if (password = pass1) {
alert('Password Correct! Click OK to enter!');
counter++
}
else {
alert("Password Incorrect!!!");
window.location="Lab5Part2.html";
}
}
else {
alert("You have failed 3 times!");
window.location="http://www.google.com";
}
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