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JavaScript - For Loop To Write Out Two Matching Values In An Array
Hi
Having a small problem with writing out the matches from an array using a For loop. I have two arrays, lets say arrayA and arrayB. In arrayB are numbers which are a number of miles, ie 1,2,6,4,5,6,6. And in arrayA are the days of the week. Each day of the week is associated with a mileage, ie Mon = 1, Tues = 2 etc. My script has found the largest mileage in arrayB. Next I have to find the days of the week that match this highest mileage and write these out, along the lines of "The highest mileage was 6 run on Wed, Sat, Sun." I have managed to get a For loop to work with this BUT..... I can only get it to write out the first instance of the day the match is found. ie "The highest mileage was 6 run on Wed," Pointers in the right direction to help me solve this problem would be much appreciated. [CODE] maximumDistanceIndex = 0; for (var distance = 1; distance < distanceArray.length; distance = distance + 1) { if (distanceArray[distance] > distanceArray[maximumDistanceIndex] ) { maximumDistanceIndex = distance document.write ('The maximum distance was ' + maximumDistance + ' km' + ' run on ' + dayArray[maximumDistanceIndex] ); } } [CODE] Similar TutorialsHi I am currently writing a program to analyse (to a degree), the points scored in a dance contest. The program mainly works so far. However I am struggling to conclude the program end. Using an if statement, I would like to compute if a dance-off is required, looping through the combinedPointsArray and determining if 2 or more numbers hold the higest score and are equal. The aim is to provide: Maximum number of combined points The couples and their combined points The couples names with the highest points If two or more couples have equal highest combined points - output whether a dance-off is required. This is my program so far: Code: <HTML>
<HEAD>
<LINK REL="shortcut icon" TYPE="image/x-icon" HREF="favicon.ico">
<TITLE>
Latin Dancing Contest
</TITLE>
<SCRIPT LANGUAGE = "JavaScript">
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 (judgesPointsArray.length)
for (x=0;x<combinedPointsArray.length;x++)
{
combinedPointsArray[x] = parseInt( judgesPointsArray[x] + audiencePointsArray[x] );
}
var biggest = 0;
var values = new Array();
for (x=0;x<combinedPointsArray.length;x++)
{
if (combinedPointsArray[x] >= biggest )
{
values[biggest]++;
biggest = parseInt(combinedPointsArray[x]);
}
}
if ( values == biggest )
{
document.write('A Dance-off is required <BR><BR> ');
}
document.write('The biggest score was : ' + (biggest));
</script>
<BR><BR>
<table border="1">
<tr><th>Names</th><th>Combined Points</th></tr>
<script language="JavaScript">
<!--
// Use a for loop to step through the two arrays and print
// the values in the table.
for (var i=0; i<contestantNamesArray.length; i++)
{
document.write("<tr><td>" + contestantNamesArray[i] + "</td>");
document.write("<td>" + combinedPointsArray[i] + "</td></tr>");
}
//-->
</script>
</HEAD>
<BODY>
</BODY>
</HTML>
Any help would be really appreciated. I have spent so long on this; consequently I am pulling my hair out. Regards hyp3r Okay, I am taking a js class and there is one minor bug that is driving me crazy with this assignment. First, here is the code I wrote, then my question: Code: var games = ["Jacks","Chutes and Ladders","Extreme Uno","Bopit","Barbie Doll"];
var price = [4.00,15.99,25.00,27.99,32.00];
var inventory = [40,15,30,20,40];
//I could not figure out how to make this work without assigning values first. It was giving NaN.
var subtotal = [0,0,0,0,0];
var qtySold = [0,0,0,0,0];
function chooseItem() {
var answer = 0;
while (answer != 6) {
var orderForm = "Choose a number below:\n";
for (var i=0; i<games.length; i++) {
orderForm = orderForm + (i + 1) + ".) " + games[i] + ": # in stock: " + inventory[i] + "\n";
}
orderForm = orderForm + "6.) Show Sales Summary";
answer = prompt(orderForm);
answer = parseFloat(answer);
if(answer != 6 && answer >= 1 && answer < games.length+1) {
var qty = prompt("How many " + games[answer-1] + " would you like?");
qtySold[answer-1] = parseFloat(qtySold[answer-1]) + parseFloat(qty);
subtotal[answer-1] = qtySold[answer-1] * price[answer-1];
} else if (answer < 1 || answer > 6) {
alert("Invalid Answer");
} else {
alert("Click OK to see your summary:");
}
}
var summary = "Your Sales: \n";
for (var j=0; j<qtySold.length; j++) {
summary = summary + qtySold[j] + " " + games[j] + " at " + currency(price[j]) + " each for a total of " + currency(subtotal[j]) + "\n";
}
alert(summary);
}
So basically, the arrays subtotal and qtySold need to retain values in case the "customer" chooses to add more of the same item in each order. What you see above works; however, when I alert the summary, it lists all of the items, even if there were none ordered. It simply says 0, but that is not what I want. Basically, I only want the total to reflect only the items that were actually selected. I do not what to do it this way: Code: var subtotal = [0,0,0,0,0]; var qtySold = [0,0,0,0,0]; I can effectively do this by NOT assigning any values to the qtySold array in the beginning: i.e. doing it this way: Code: var subtotal = new Array(); var qtySold = new Array(); The only problem is that when I do this, I get NaN at this point: Code: qtySold[answer-1] = parseFloat(qtySold[answer-1]) + parseFloat(qty); subtotal[answer-1] = qtySold[answer-1] * price[answer-1]; obviously, this is because I am referencing qtySold[answer-1] directly in the loop - so the first time through, there is nothing assigned. I can't (just before this line) assign 0 to each array item - to get it defined because if the user goes back in and adds more, it will always reset the number back to 0, which is not what I wanted. I tried adding an if..else statement instead, but cannot figure out how to get that to work? What are my options here? Thanks! Mike my arrays. how do i input them into the loop? firstName = new Array(); lastName = new Array(); street = new Array(); city = new Array(); state= new Array(); zip = new Array(); amount = new Array(); date = new Array() Code: <script type=text/javascript>
var values = [];
var SIZE = 10;
document.write('<table class="mytable" border="1">');
for (var index = 1; index <= SIZE; index++)
{
document.write('<tr><td>');
values.push(Math.random());
document.write(values[values.length -1]);
document.write('</tr></td>');
}
document.write('</table>');
var sum = 0.0;
for (var index = 0; index < values.length; index++)
{
sum += values[index];
}
document.write('<table class="totaltable" border="1">');
document.write('<tr><td>Total Number of Rows</td></tr><td> Total Sum</td></tr>');
document.write('<tr><td>' + values.length + '</td></tr>' + sum + '</td></tr>');
('</table>');
</script>
Just a little background on my problem.. I need to take a programing class to graduate college and I have never been good with code so I need some help. The teacher is asking for a script with a while-loop using rgb(..., ..., ...) that has to have the word Hello (10 times) in it, and the font color has to run from red (top) to green (bottom). The other question is write a script, using if-else to produce the following... A random number between 0.5 and less than 1. x is a decimal number between 0.5 and less than 1. We are using random number of the Math object This exercise requires you to put 2 statements in braces for the if-part and 2 statements in braces for the else-part. Any help would be greatly aprreciated.. Thanks Tom I have am currently taking over as the developer for this web site, and the developer who left the project unfinished wrote a script. What it does is takes posts from vBulletin forums, for instance News posts, and then it grabs the posts by ID and Title and writes the title on the home page of the web site. The problem right now that I have is the test wraps, you can see what I mean here http://www.netcodeilluminati.com/v2 If you look on the left, I want to make the text cut off after a certain amount of characters with "..." at the end as if there is more to the title but you can't see it. Here is the script: for (x = 0; x < 5; x++) { document.write("<li><div class=\"li_icon\"><img src=\"images/icons/text.png\" alt=\"text\" /></div><div class=\"li_text\">"); document.write("<a href=\"../forums/showthread.php?t="+threads[x].threadid+"\">"+threads[x].title+"</a></div></li>"); } I was wondering how I could go about doing this. Thanks for any future help. -Kevin Hi, someone helped me and wrote this code for me: Code: <script>
var totalWidth = 0;
$("#gallery img").each(function(){
totalWidth += $(this).width();
});
alert(totalWidth);
</script>
it alerts the width of all my images, great! But now, I need to add onto that 20px between each image and 104px or so onto the end Then I need to be able to write it out to the style of the #content div? here's the site: http://www.jbiddulph.com/chrisbradshaw Please help?! I've reading this forum for some time now and this is my first post. I hope to find an helpfull community here and to be able to help other users myself. I'm new to JS so this might be an simple question: I have an form that can be filled bij an user, some fields are calculated by Javascript. I need an code to be able to calculate 'live' the totals of the fields in the loop, that fields are the grey fields at the borro. This is (part of) my form: PHP Code: <table align="center" class="bd" border="0" cellspacing="1" cellpadding="2" width="500"> <tr> <td>Bewerking</td> <td>Prijs per uur</td> <td>Aantal uur</td> <td align="center">Totaal</td> <td>Opmerkingen</td> </tr> <?php for ($i=0; $i<=$bew_aantal_regels_corr; $i++) { ?> <tr> <td><?php if($error_bew_vergeten[$i] == "ja"){ $error_omschr = $error_omschr_bew_vergeten[$i]; include('includes/input_error.php'); } ?> <select name="bewerking[]" onChange="bew_uren(this, <?php echo $i ?>),bew_uren_tot(this, <?php echo $i ?>)"> <option></option> <?php $sql_bewerking = "SELECT omschrijving, tarief from sp_calc_werkzaamheden ORDER BY omschrijving ASC"; $res_bewerking = mysql_query($sql_bewerking,$con); while ($row_bewerking = mysql_fetch_assoc($res_bewerking)){ ?> <option <?php if($row_bewerking["omschrijving"] == $bew_omschr[$i]){ echo 'selected="selected"'; } ?> value=<?php echo $row_bewerking["tarief"] ?>><?php echo $row_bewerking["omschrijving"] ?></option> <?php } ?></select> <input type="hidden" name="bew_omschr[]" value="<?php if($bew_omschr[$i] != ''){ echo $bew_omschr[$i]; } ?>" /> </td> <td><input type="text" name="bew_tarief[]" onKeyup="bew_uren_tot(this, <?php echo $i ?>)" size="5" style="text-align:right" value="<?php if($bew_tarief[$i] != ''){ echo $bew_tarief[$i]; } ?>" /><?php if($error_bew_tarief[$i] == "ja"){ $error_omschr = $error_omschr_bew_tarief[$i]; include('includes/input_error.php'); } ?></td> <td><input type="text" name="bew_uren[]" onKeyup="bew_uren_tot(this, <?php echo $i ?>)" size="5" style="text-align:right" value="<?php if($bew_uren[$i] != ''){ echo $bew_uren[$i]; } ?>" /><?php if($error_bew_uren[$i] == "ja"){ $error_omschr = $error_omschr_bew_uren[$i]; include('includes/input_error.php'); } ?></td> <td><input type="text" name="bew_totaal[]" size="10" style="text-align:right;background-color: #f1f1f1" value="<?php if($bew_totaal[$i] != ''){ echo $bew_totaal[$i]; } ?>" readonly="readonly" /></td> <td><input type="text" name="bew_opmerkingen[]" size="75" value="<?php if($bew_opmerkingen[$i] != ''){ echo $bew_opmerkingen[$i]; } ?>" /></td> <td><input type="hidden" name="bew_id[]" value="<?php if($bew_id[$i] != ''){ echo $bew_id[$i]; } ?>" /></td> </tr> <?php } ?> <tr> <td>Regels: <input type="text" name="bew_regels" value="<?php if($bew_aantal_regels != ''){ echo $bew_aantal_regels; } ?>" size="3" /><?php if($error_bew_aantal_regels == "ja"){ $error_omschr = $error_omschr_bew_aantal_regels; include('includes/input_error.php'); } ?> <input type="hidden" name="bew_aantal_regels_oud" value="<?php if($bew_aantal_regels_oud != ''){ echo $bew_aantal_regels_oud; } ?>" size="3" /> <input type="hidden" name="bew_aantal_regels_db" value="<?php if($bew_aantal_regels_db != ''){ echo $bew_aantal_regels_db; } ?>" size="3" /></td> <td></td> <td><input type="text" name="bewerking_tot_uur" size="5" style="text-align:right;background-color: #f1f1f1"" value="<?php if($bewerking_tot != ''){ echo $bewerking_tot; } ?>" readonly="readonly" /></td> <td><input type="text"name="bewerking_tot" size="10" style="text-align:right;background-color: #f1f1f1"" value="<?php if($bewerking_tot_uur != ''){ echo $bewerking_tot_uur; } ?>" readonly="readonly" /></td> </tr> </table> Hi Guys, How do I sum the values of an array and output the result using document.write? Say my array is var number=new Array(1.234,56.43,1.02); THANKS Thought this wud work? Code: <script type="text/javascript"> var x = [1, 2, 3, 4, 5, 6, 7, 8, 9]; document.write(sum(x)); </script> hello I am having a problem to add numbers store in an array. arrayValues[0][0] = 1; arrayValues[0][1] = 2; var col = 0; var sum; for ( var row = 0; row < index; i++ ) sum += arrayValues[col][row]; my result is ==> 12 it is defining my sum variable as string. even I try do do this var sum = 0; to define sum as numeric variable. my result was ==>012. Any idea, this is my first javaScritp code. Thanks. Hello, I have a homework assignment to complete and I don't understand 2 particular parts. I need to design a game that does the following: Based on assignment 3, write a program that allows you and the computer to take turns and guess each other's secret number (between 1 and 100); Requirements: * You and your opponent (computer) take turns to guess. * You and your opponent gives simple hints like in assignment 3 for each round. * Show how many rounds have passed. * Keep guessing record and display it to assist the game play. The guessing of the numbers needs to be simultaneous, and the professor wants us to use a while loop and an array. It is based on a previous assignment, in which we designed a program that would ask the user to guess a number between 1-100 that the computer generated. The user is prompted by alerts that say "too high" or "too low" and then is told when they guess correctly. This I understand, but I am confused about how to modify it to fit the new assignment. Here is the code I have: Code: <html>
<head>
<title> Homework #3 </title>
<script type="text/javascript">
var randomNumber = Math.floor (Math.random()*100)+1;
{
var compNumber;
var compNumber = Math.floor (Math.random()*100)+1;
}
{
var copyArray, index;
copyArray = []
index = 0;
while (index < strArray.length) {
copyArray[index] = parseFloat(strArray[index]);
index = index + 1;
}
return copyArray;
}
function compGuess ()
{
document.getElementById("compGuessBox").value=compNumber;
}
function Check()
// Assumes: guessBox containes a guess
// Results: displays text saying if guess is too high, too low, or correct
{
var userNumber;
userNumber = document.getElementById("guessBox").value;
userNumber = parseFloat(userNumber);
if (userNumber < randomNumber) {
alert("Too Low!");
}
if (userNumber > randomNumber) {
alert("Too High!");
}
if (userNumber == randomNumber) {
alert ("Correct!");
}
}
</script>
</head>
<body style="background-color:Lavender">
<h1>
<div style="text-align:center">
Guess the Number the Computer has Chosen!
</h1>
<p>
<div style="text-align:center">
<input type= "text" id="compGuessBox" size="10" value="" />
<input type="button" value="Click for Guess" onclick="compGuess();" />
</p>
<p>
<div style="text-align:center">
<input type="button" value="Too Low!" onClick="FUNCTION TO MAKE IT GUESS AGAIN HIGHER"
<input type="button" value="Too High!" onClick="FUNCTION TO MAKE IT GUESS AGAIN LOWER"
<input type="button" value="Correct!"
</p>
<p>
<div style="text-align:center">
The Computer is Thinking of a Number Between 1-100. Enter your Guess: <input type="text" id="guessBox" size="10" value="" />
</p>
<p>
<input type="button" value="Check your Answer" onclick="Check();" />
</p>
</body>
</html>
Obviously it doesn't work. My questions a 1.) How can I use an array to display the guesses? 2.) How can I use a while loop to allow the computer and user to take turns guessing each other's numbers? I'm sorry if these are too broad--I genuinely do not know how to proceed from here. I'm going to (hopefully) see the professor to ask these questions as well, but I thought I'd ask here just in case our schedules can't match up. Thank you in advance! I have a checkbox with an id="chk" and a html table (myTable) loaded from a query where one of the columns is the record status (td id="RecStatus"). When I click the checkbox "on", I'm calling a function that I want to go through all records in the table and hide the ones with a RecStatus of "closed". Here's what I have thus far; I know I'm very close but I'm having issues building my array. Code: function killSomeRows(){
var cell=document.getElementById("RecStatus");
var tbl=document.getElementById("myTable");
var numRows=tbl.rows.length;
var row=document.getElementById("displayRow");
var i=0
//myArray is set to the # of Rows in my table
var myArray = new Array(numRows);
//I start my for loop and this is where I am lost
for (i=0; i<=numRows; i++){
//In here I want to go through each row in my table and if the "RecStatus" cell = 'Closed' and my checkbox.checked==true, I want to change the style.display = 'none'.
//else I want those rows with a RecStatus of 'Closed' to be visible
//using style.display = ''
if (RecStatus == 'Closed' && chk.checked==true)
document.getElementById(row where status is closed).style.display = 'none';
else
document.getElementById(row where status is closed).style.display = '';
}
}
I can get it to hide the 1st record in the table if that record is closed when I click/unclick the checkbox but it appears I do not have the array set up and then the for loop is not going through each record in the array. I'm at a loss....I'm very new to javascript and have been looking at this all day. Any help is appreciated...thanks Cypress apparently this is supposed to be a loop... I got it off another topic here and it made NOOOO sense Code: //dandavis's ES5 Array methods:
(function ArrayMethods(){var o=Array.prototype,it,i,
e=eval('( {map:Z0,r=[];for(;i<m;i++){if(i in t){r[i]=a.call(b,t[i],i,t);}}return r;},filter:Z0,r=[],g=0;for(;i<m;i++){if(i in t&&a.call(b,t[i],i,t)){r[g++]=t[i];}}return r;},every:Z0;return m&&t.filter(a,b).length==m;},some:Z1;for(;m--;){if(m in t&&a.call(t,t[m],m,t)&&!--i){return true;}}return false;},lastIndexOf:Zb||-1;for(;m>i;m--){if(m in t&&t[m]===a){return l;}}return-1;},indexOf:Zb||0;for(;i<m;i++){if(i in t&&t[i]===a){return i;}}return-1;},reduce:Z0,r=b||t[i++];for(;i<m;i++){r=a.call(null,r,t[i],i,t);}return r;},reduceRight:Zm-1,r=b||t[i--];for(;i>-1;i--){r=a.call(null,r,t[i],i,t);}return r;},forEach:function(a,b){this.concat().map(a,b);return this;}})'.replace(/Z/g,"function(a,b){var t=this.concat(),m=t.length,i="));for(it in e){i=o[it];o[it]=i||e[it];}
}());//end ArrayMethods()
someone want to explain it to me? here is some more Code: (function(){var o=Array.prototype,it,i,e={
map:function(a,b){var t=this.concat(),m=t.length,i=0,r=[];for(;i<m;i++){if(i in t)r[i]=a.call(b,t[i],i,t)}return r},
filter:function(a,b){var t=this.concat(),m=t.length,i=0,r=[],g=0;for(;i<m;i++){if(i in t&&a.call(b,t[i],i,t)){r[g++]=t[i]}};return r},
every:function(a,b){var t=this.concat(),m=t.length,i=0;return m&&t.filter(a,b).length==m},
some:function(a,b){var t=this.concat(),m=t.length,i=1;for(;m--;){if(m in t&&a.call(t,t[m],m,t)&&!--i){return!0}}return!1},
lastIndexOf:function(a,b){var t=this.concat(),m=t.length,i=b||-1;for(;m>i;m--){if(m in t&&t[m]===a){return l}}return-1},
indexOf:function(a,b){var t=this.concat(),m=t.length,i=b||0;for(;i<m;i++){if(i in t&&t[i]===a){return i}}return-1},
reduce:function(a,b){var t=this.concat(),m=t.length,i=0,r=b||t[i++];for(;i<m;i++){r=a.call(null,r,t[i],i,t)}return r},
reduceRight:function(a,b){var t=this.concat(),m=t.length,i=m-1,r=b||t[i--];for(;i>-1;i--){r=a.call(null,r,t[i],i,t)}return r},
forEach:function(a,b){this.concat().map(a,b)}
};for(it in e){i=o[it];o[it]=i||e[it]}}()); //end Array.16 injection
it has something to do with eval... whats eval? sigh I hate arrays this is so confusing to try and read >< HI, I am new to JavaScript and need help with a code //names of couples stored in array var contestantNamesArray = ['Tom and Nazia', 'Pat and Dan', 'Sandra and Kofi', 'Ian and Adele', 'Paul and Costas']; //points awarded by judges and audience stored in arrays var judgesPointsArray = [2,1,5,4,3]; var audiencePointsArray = [4,5,2,3,1]; //Part (i)(a) //new array to store the combined points for each couple var combinedPointsArray = new Array (4); //Part (i)(b) //loop to add the judges and the audience points for each couple and to store them in the combined points array for (var score = 0; score < combinedPointsArray.length; score = score + 1) { combinedPointsArray[score] = judgesPointsArray[score] + audiencePointsArray[score]; } //Part(i)(c) //loop to find and write out the maximum number of points scored maxPointsScoredIndex = 0; for (var score = 1; score < combinedPointsArray.length; score = score + 1) { if (combinedPointsArray[score] > combinedPointsArray[maxPointsScoredIndex]) { maxPointsScoredIndex = score; } } document.write ('The maximum number of points was ' + combinedPointsArray[maxPointsScoredIndex] + '<BR>'); //Part (iii) //Add code that will // -- write out a heading for the list of couples scoring the maximum // -- write out the names of all the couples with the maximum number of combined points // keeping score of how many they are // -- at the end, write out whether a dance-off is required or not, depending on how many couples scored the maximum It's the third part that I'm struggling with. Could someone help me? Thank you! I'm having problems with selecting values from array. I have a dropdown box where you choose what fruit you want to buy. When selected the array should assign 2 values to that fruit. I don't know how to do that. Here's what I have.. I added comments. Javascript part: Code: <script type="text/javascript">
function Fruits() {
var selectfruit = newArray( //assigning values to fruit selected from dropdown box
newArray("Banana", 1, 1),
newArray("Apple", 1.2, 0.5),
newArray("Mango", 1.1, 0.9),
newArray("Orange", 0.1, 9.99));
var howmanyfruits = Number(document.getElementById("howmanyfruits").value); // how many fruits are you buying
var totalfruitsowned = Number(document.getElementById("totalfruitowned").value); // How many fruits do you already have
/* cash and coupons needed to buy fruits.
cash is cpst for 1 fruit.
coupons is cost for 1 fruit
cash_all is cost for all fruits you're buying
coupons_all is cost for all fruits you're buying
each fruits requires cash AND coupons to be bought. Cash and coupons are tied to the first values in Array.
Eg. If you choose Apple that value would be 1.2
The 'fruitsmaxtobuy' variable is not tied to the first value, but the second one in array.
If you choose Apple that value would be 0.5.
*/
var cash = Math.round(((totalfruitsowned * 0.51 * selectfruit) + 700)*10)/10;
var coupons = Math.round(((totalfruitsowned * 0.51 * selectfruit) + 850)*10)/10;
var cash_all = Math.round((howmanyfruits * cash)*10)/10;
var coupons_all = Math.round((howmanyfruits * coupons)*10)/10;
var fruitsmaxtobuy = Math.round((totalfruitsowned * 0.12 * selectfruit)*10)/10;
/*
Display Error if nothing is entered or if you forget to enter total fruits
*/
if (((howmanyfruits=="" || howmanyfruits==null) && (totalfruitsowned=="" || totalfruitsowned==null)) || ((howmanyfruits==Number(document.getElementById("howmanyfruits").value)) && (totalfruitsowned=="" || totalfruitsowned==null)))
{document.getElementById("cash").innerHTML = "Error";
document.getElementById("coupons").innerHTML = "Error";
document.getElementById("cash_all").innerHTML = "Error";
document.getElementById("coupons_all").innerHTML = "Error";
document.getElementById("fruitsmaxtobuy").innerHTML ="Error"}
else {
document.getElementById("cash").innerHTML = cash;
document.getElementById("coupons").innerHTML = coupons;
document.getElementById("cash_all").innerHTML = cash_all;
document.getElementById("coupons_all").innerHTML = coupons_all;
document.getElementById("fruitsmaxtobuy").innerHTML =fruitsmaxtobuy}
}
</script>
HTML part: Code: <form action="" id="fruitcost">
<table align="center" width="37.5%" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<th colspan="2" align="center">Fruit cost calcultor</th>
</tr>
<tr>
<td>Select Fruit:</td>
<td align="center"><select id="selectfruit">
<option>Banana</option>
<option selected>Apple</option>
<option>Mango</option>
<option>Orange</option>
</select>
</td>
</tr>
<tr>
<td>Total Fruits Owned:</td>
<td align="center"><input id="totalfruitsowned" type="text" /></td>
</tr>
<tr>
<td>How many fruits are you buying:</td>
<td align="center"><input id="howmanyfruits" type="text" /></td>
</tr>
<tr>
<td>Money Needed to buy 1 fruit:</td><td><font id="cash"></font></td>
</tr>
<tr>
<td>Coupons Needed to buy 1 fruit:</td><td><font id="coupons"></font></td>
</tr>
<tr>
<td>Money Needed:</td><td><font id="cash_all"></font></td>
</tr>
<tr>
<td>Coupons Needed:</td><td><font id="coupons_all"></font></td>
</tr>
<tr>
<td>Nr. of fruits you can buy:</td><td><font id="fruitsmaxtobuy"></font></td>
</tr>
<tr>
<td align="center" colspan="2"><input type="button" value="Submit" onclick="Fruits()" /></td>
</tr>
</tbody>
</table>
</form>
Hi all I am trying to create a code which stores information about songs The information to be stored are : song ID song name song artist song URL So far what I've done is create an empty array with four properties The code asks the user to enter information and then displays them However i'm having difficulty figuring out how to insert all the information entered in the array. For example if information about 3 songs were entered, how can I insert all of them in the array I created. After storing the information, I want to be able to search for songs by their ID. When I wrote the function to do this, if lets say I entered two songs one with S1 as ID and one with S2 as ID, I type S1 in the search box, but it doesn't return anything. However if I enter S2, it returns the information of the track with this ID, which makes me think that entering information for a second song overwrites the first one This is my code so far: <html> <body> <h1>Tracks and Artists</h1> <script type="text/javascript"> function request(tracks) { for (var i=0;i<2;i++) { tracks.trackID = prompt("Enter track ID") tracks.trackName = prompt("Enter track name") tracks.trackArtist = prompt("Enter artist name") tracks.trackURL = prompt("Enter track URL") alert(display(tracks)) } } function insert() { function display(tracks) { return "Track ID: " + tracks.trackID + "\nTrack name: " + tracks.trackName + "\nTrack artist: " + tracks.trackArtist + "\nTrack URL: " + tracks.trackURL } var tracks = [{trackID: "", trackName:"", trackArtist:"", trackURL:"" }] request(tracks) </script> </body> </html> hi, I have this keypressed function: Code: function keyPressed(event, input) {
if (event.keyCode == 8) {
return true;
}
var char = event.which ? event.which : event.keyCode;
char = String.fromCharCode(char);
var exers = "1234 1234 1234";
return (exers.charAt(input.value.length) == char);
}
This function allow me to press in order the numbers in array (index0). It is works very well. But i want to add an array with more exercises like: Code: var exerc = new Array();
exerc[0]= "1234 1234 1234";
exerc[1] = "5678 5678 5678";
exerc[2] = "9012 9012 9012";
Also, i have a dropdown menu that parser options from a xml file: Code: <form> <select style="width:100px" id='courses'> </select> </form> and my xml file looks like: Code: <courses>
<course title="exercise 1">
<lesson>1234 1234 1234</lesson>
</course>
<course title="exercise 2">
<lesson>5678 5678 5678</lesson>
</course>
<course title="exercise 3">
<lesson>9012 9012 9012</lesson>
</course>
.
.
.
</courses>
*I write the same index because i have two input field. I see the first choose (depend on dropdown) in first input, and i rewrite the same exercise in the second input. So, it's something like an exercise for me and i stack here. - I repeat. It is work with only one index very well. The problem is that, when i add more that one index in the array. Any suggestion about my problem?Javascript it is not my strong point I try this but it is doesn't work.Baybe it is totally wrong! Code: function keyPressed(event, input) {
if (event.keyCode == 8) {
return true;
}
var char = event.which ? event.which : event.keyCode;
char = String.fromCharCode(char);
var exerc = new Array();
exerc[0]= "1234 1234 1234";
exerc[1] = "5678 5678 5678";
exerc[2] = "9012 9012 9012";
for (i=0;i<exerc.length;i++)
{
document.getElementById("courses").selectedIndex;
}
return (exers.charAt(input.value.length) == char);
}
Hi How can i output two maximum numbers of an array if they are equal? var flower["roses", "violets", "buttercups", "daisies"]; var flowerAmounts[9, 8, 3, 9]; Output should be: The maximum amount of flowers is 9. There are 9 roses and 9 daisies. Hope someone can help, thanks All I am trying to pull the data from an array and place it in a table. If I assign index 0 it works as desired. I then placed it inside a foor loop and changed the index to a variable and I get "undefined". Here is the code snipet: document.write("<table width='500'>"); document.write("<tr><td width='75%'>Product:</td><td width='25%' align='center'>Cost</td></tr>"); for (i=0; i<(itemPrice.length); i++); { document.write("<tr><td>" + itemName[i] + "</td><td align='right'>" + itemPrice[i] + "</td></tr>"); totalcost = totalcost + itemPrice[i]; } document.write("<tr><td>The total is:</td><td align='right'>" +"$ "+totalcost+ "</td></tr>"); document.write("</table>"); compared to some of the samples I have seen I apologize if this is too elementary. rneaul I'm new to Javascript and having some difficulty understanding why I cannot get this code to continuously loop the captions in the array on the screen. The first caption in the array with appear, hold as per the setTimeout cycle and then disappear, but the next caption never comes up. 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>Untitled Document</title>
<script type="text/javascript">
<!--
var caption=new Array()
caption[0]="Caption1"
caption[1]="Caption2"
caption[2]="Caption3"
var x=0
//-->
</script>
</head>
<html>
<body>
<script type="text/javascript">
<!--
function cycle(){
document.write(caption[x])
if(x<3)
x++
else
x=0
setTimeout("cycle()",1000)
}
cycle()
//-->
</script>
</body>
</html>
I'm sure this is probably a simple fix, or at least I hope it is. So any assistance is appreciated. Thank you I'm just a beginner with JS and having trouble with the code for my array and FOR loop. I'd like the names of these animals to be listed on separate lines. Am I way off here? I wasn't sure if the for statement had to be within a function. I've spent hours trying to figure this out and appreciate any help. <script type="text/javascript"> var animal = new Array(4); animal[0] = "dog"; animal[1] = "cat"; animal[2] = "bird"; animal[3] = "rabbit"; var counter = 0; function writeAnimal () { for (var counter = 0; counter== 4; counter++) { document.write(animal[0]); document.write("<br />"); } } </script> |
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