|
JavaScript - Counting Integers In An Array
Hi all,
I have an array holding 100 randomly generated integers between 0-9 inclusive...firstArray[99] how do i use a second array to keep count of how many times each integer is generated..secondArray[9] Similar TutorialsOkay so im just doing a little test and this might seem like a really stupid question but i cant figure it out...all i simply want to do is take all those numbers and get the sum then display the sum in a document.write in theory i should get 10 but i dont and idk why i have tried many many things Code: var numbers = new Array(); numbers[0] = 1; numbers[1] = 2; numbers[2] = 3; numbers[3] = 4; thanks Hi all, I have an array containing numbers. I want to order this numbers contained from major to minor in order to print them .. Here's what I have done: Code: var arr = new Array(6);
arr[0] = "10";
arr[1] = "5";
arr[2] = "40";
arr[3] = "25";
arr[4] = "1000";
arr[5] = "1";
function sortNumber(a,b)
{
return b - a;
}
for(var i=0;i < 6; i++){
var myarray = arr[i];
myarray.sort(sortNumber);
alert(myarray);
}
But I get no alert and a "myarray.sort is not a function" error. What am I doing wrong? How can I solve this? Thanks a lot in advance! I feel stupid for asking a question about searching arrays, when there's a very similar thread that has been answered just recently on the first page; however, I'm still having trouble contemplating my own scenario. Basically, my program prompts the user for the length of the array and then asks the user to fill the array with words. Here is where I need help: I want to confirm if the user wants to search the array for those words. If so, the user will then be prompted to enter the word he wishes to search for; if found, the location of that word will be reported and the number of times the word has been searched for will be kept track of in a separate array. Here is what I have so far: Code: /* -- phase 3 ------------------------------------------------------
search for words the user asks for
*/
// search variables
var response;
var search;
while (true) {
// confirmation protocol
response = confirm("Do you wish to search the lexicon for a word?")
if (response) {
search = prompt("What word would you like to search for?");
// alert("search");
}
else {
alert("Thank you for wasting my time.");
break;
}
// begin search protocol
for (i=0; i<words.length; i++) {
if (search==words[i]) { alert("Word found at" +i+);}
} // end for loop
else {alert("word not found.");}
// counter array/accumulator
var hits = new Array(words.length);
hits[i] = 0;
for (i=0; i<words.length; i++) {
if (words[i] == search) {
hits[i] = hits[i] + 1;
alert("This word has been searched for " +hits[i]+ "times.");
}
} // end for loop
} // end while
The problem with my search seems to be that the search is parsed through the for loop; if it finds the word it alerts me that it was found at i location, but then it continues through and sees that the search does not equal the other values in the array and reports it's not found as well. My counter array is completely off, and I'm really at a loss to figure it out. I can see that the problem might be that each new search resets the hits[i] to equal 0, so no matter how many times a word is searched for, it returns a count of 1. I really want this array to track the number of hits for each word searched for, but have no clue why it's not working. Thanks for any help I can get; and please, feel free to critique my coding style, I definitely need to improve. Write a program named Median.java that asks the user for three integers and outputs the median. I have to do this using if else statements. It seems really easy, but I can't figure it out. Help! Here's my code: Code: import java.util.*;
public class Median {
public static void main(String[] args) {
Scanner console = new Scanner(System.in);
System.out.println("Please enter number 1");
int max = console.nextInt();
int min = max;
int median = min;
for (int i=2; i <= 3; i++) {
System.out.println("Please enter number "+i);
int enteredNumber = console.nextInt();
if (enteredNumber > max) {
max = enteredNumber;
}
else {
enteredNumber = median;
}
if (enteredNumber < min) {
min = enteredNumber;
}
else {
enteredNumber = median;
}
}
System.out.println("The median is: "+median);
}
}
When I run this it just gives me back the first number I entered. 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=iso-8859-1" />
<title>Test Project</title>
<script type="text/javascript">
var clicks=0;
function linkClick(){
document.getElementById('clicked').value = ++clicks;
}
</script>
</head>
<body>
<p align="center"><a href="http://www.google.ie" target="_blank" onclick="linkClick()">Google</a></p>
<p align="center"> </p>
<p align="center"><a href="http://www.google.ie" target="_blank" onclick="linkClick()">Google</a></p>
<p align="center"> </p>
<p align="center"><a href="http://www.google.ie" target="_blank" onclick="linkClick()">Google</a></p>
<p align="center"> </p>
<td colspan="3" valign="top">You have clicked my links <input id="clicked" size="1" onfocus="this.blur();" value="0" > times</td>
<Script Language="JavaScript">
if ("clicks">3);
{
window.open('http://ie.yahoo.com','','scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,location=no,status=no');
}
</Script>
</body>
</html>
I am a complete novice, I've spend most of today trying to research and learn Javascript. I would like my page to keep a count of how many times the links have been opened (this is happening) I would like a new pop up window to occur when the count gets to a specif value (this isnt happening) OR maybe to have a new hyperlink to appear that the user can then click on? Thanks in advance. I have a vertical menu in which the sub menu is a box that pops out to the right and the user can click boxes to make selections (input check boxes). I would like some way to indicate to the user after they have left the sub menu, that they have made selections within that sub menu. Perhaps a number after the menu item name, in which the number of sub menu selections are indicated in parenthesis? Is this possible? Hi Im new to javascript and need some help with a project I have, the task I have is: Create a page that can take a bloke of text and out put the following o How many times each letter occurs o How many spaces o How many words o How many times each word occurs o A list of things that are not words or special characters I think maybe use an array but im not sure, like I said im new to this so not too sure on how to do it. I know it would read into a file say a txt file and sort through it this way, possibly using some kind of loop to read through all of the text before sorting it and I know it might use variables. I know how to kind of work through the task I have, but to actually implement the mechanics of the javascript is something that I then struggle with Thanks to all that help. Hi, I need to count how many times a keyword (input) appears in a string (str). I think I'm getting close with this: Code: var input = document.getElementById('autocomplete').value;
var inp = input;
for (var j = 0; j < gmarkers.length; j++)
{
var str=gmarkers[j].myname;
var patt1=new RegExp(inp,'i');
if (str.match(patt1))
{
found = true;
var box = [inp];
var string1 = str;
for (var i=0;i<box.length;i++) {
nCount = string1.split(box[i]).length-1;
alert(box[i] + ' is found ' + nCount + ' times<br>');
}
but I can't get it to actually work. any ideas? thanks in advance. Hello all! I've run into a few hour long snag and cant seem to get thru it. My homework says to write a JS program form with an identifying lable, an associated text area and 2 buttons. The buttons should have text that says "# letter occurrences" and one that says "# word occurrences". Each button should call an associated JS function. The # letter occurrences routine should print a table indicatin the number of occurrences of each letter off the alphabet in the text area, the # word occurrences routine should print a table indicating the number of one letter wors, the number of two letter words, the number of three letter words, up to 10 letter words ... So far here is what I have ..... <?xml version = "1.0" encoding = "utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns = "http://www.w3.org/1999/xhtml"> <head> <title>random</title> <script type="text/javascript"> var tableLetter="textArea"; var tableWord="textArea"; var lengthOfWord="tableWord.Length"; function ShowDiv(divName) { HideDivs(); if (document.all) { document.all.tableLetter.style.visibility = "visible"; } else { document.getElementById(divName).style.visibility = "visible"; } } function HideDivs() { if (document.all) { document.all.tableLetter.style.visibility = "hidden"; document.all.tableWord.style.visibility = "hidden"; } else { document.getElementById('tableLetter').style.visibility = "hidden"; document.getElementById('tableWord').style.visibility = "hidden";} } </script> </head> <body> <form name="form1" method="post" action=""> <textarea name="textArea" rows=6 cols=50> How many occurrences are in your sentence? </textarea> <br /> <input type="button" onClick="ShowDiv('tableLetter')" name="button1" value="# Letter Occurences"> <input type="button" onClick="ShowDiv('tableWord')" name="button2" value="# Word Occurences"> </form> <br /> <div id="text containter" style='width:420; height:85px; background:silver; position: absolute; '> <table> <div id='tableLetter' style="position:absolute; left:5px; top:10px"> <font color='#0000FF'>Letter Occurrences </font> </div> </table> <div id='tableWord' style='position:absolute; left:5px; top:10px; visibility:hidden;'> <font color='#0000FF'>Word Occurrences.</font> </div> </div> </body> </html> How can i go about showing on screen a count from an initial value to an end value over a set time period. Initial value = 0 End value = 2000 Time = 25 seconds I cant find an example of this anywhere, so I'm trying here to see if somebody can help Hi all, as the title says i am trying to keep count of the number of words a user has typed into a textbox. I have an emoticon box, something like the one that you see when you reply/start a thread here. The mouseup event fires off when the user clicks on an emoticon to display it in the textbox. The problem here is, my code below does not start counting if an emoticon is added when theres nothing in the textbox (making the emoticon the first item). I can continue to add more smileys in and they will be counted in the word limit, but the first one will not be included in the count, unless the user clicks somewhere on the screen. How can i fix this problem? Code: //#message is the textbox
$(document).ready(function()
{
var characters = 100;
$("#remainder").append(characters+"words left");
$("#emoticonsbox").mouseup(function()
{
var remaining = characters - $("#message").val().length;
$("#remainder").html(remaining+"words left");
});
});
Hello I have this snippet for controlling the number of characters entered in a textarea. It works. But, if I replace in this code the name "my_form" by "contact-form" and "my_text" by "message", it doesnt ! It looks like the keyword is " my_form ". You change that , and the script will not work! It turns out that I have to change those names because the form as it was already had those names my_form and message before I added this counter And I dont want to replace the names of the form in order to adapt them to this code snippet below. The question is why would the script not work if I have just replaced two words, which dont seem to be keywords of JS programming (my_form and my_text) <html><head> <title>(Type a title for your page here)</title> <script language=JavaScript> <!-- function check_length(my_form) { maxLen = 50; // max number of characters allowed if (my_form.my_text.value.length >= maxLen) { // Alert message if maximum limit is reached. // If required Alert can be removed. var msg = "You have reached your maximum limit of characters allowed"; alert(msg); // Reached the Maximum length so trim the textarea my_form.my_text.value = my_form.my_text.value.substring(0, maxLen); } else{ // Maximum length not reached so update the value of my_text counter my_form.text_num.value = maxLen - my_form.my_text.value.length;} } //--> </script> </head> <body> <form name=my_form method=post> <textarea onKeyPress=check_length(this.form); onKeyDown=check_length(this.form); name=my_text rows=4 cols=30></textarea> <br> <input size=1 value=50 name=text_num> Characters Left </form> </body> </html> I am trying to figure out how to make a random number I can plug into a script count down from that number at certain times of the day until it reaches 0. I would like it to reset itself at midnight every day. I'm trying to make it work with a script I found on here that resets itself at midnight every day. So instead of it counting down too fast, it would count down to the next number after a randomly generated number of minutes until it reaches 0. But it wouldn't necessarily have to end at 0 at midnight. It could go from 845 to 323 at the end of the day at a slower pace. Is that possible?
I am working on a page where the user will select a location from a dynamically generated dropdown list. I was able to create the php multidimensional array (tested and working) from a MySql database using the users information at login, but I'm having problems converting it to a javascript multidimensional array. I need to be able to access variables that I can pass to a number of text fields within an html form. For instance, if a user belongs to a company with multiple addresses, I need to be able to let them select the address they need to prepopulate specific text fields. php array creation: Code: if ($row_locations)
{
while ($row_locations = mysql_fetch_assoc($locations))
{
$mail[$row_locations['comp_id']]=array('mailto'=>$row_locations['mailto'], 'madd'=>$row_locations['madd'], 'madd2'=>$row_locations['madd2'], 'mcity'=>$row_locations['mcity'], 'mstate'=>$row_locations['mstate'], 'mzip'=>$row_locations['mzip'], 'billto'=>$row_locations['billto'], 'badd'=>$row_locations['badd'], 'badd2'=>$row_locations['badd2'], 'bcity'=>$row_locations['bcity'], 'bstate'=>$row_locations['bstate'], 'bzip'=>$row_locations['bzip']);
}
}
javascript function - this should create the array and send variables to text fields. Code: function updateAddress() {
var mail = $.parseJSON(<?php print json_encode(json_encode($mail)); ?>);
{
if (comp_id in mail) {
document.getElementById('mailto').value=mail.comp_id.mailto.value;
document.getElementById('madd').value=mail.comp_id.madd.value;
document.getElementById('madd2').value=mail.comp_id.madd2.value;
document.getElementById('mcity').value=mail.comp_id.mcity.value;
document.getElementById('mstate').value=mail.comp_id.mstate.value;
document.getElementById('mzip').value=mail.comp_id.mzip.value;
} else {
document.getElementById('mailto').value='';
document.getElementById('madd').value='';
document.getElementById('madd2').value='';
document.getElementById('mcity').value='';
document.getElementById('mstate').value='';
document.getElementById('mzip').value='';
}
}
}
Where is this breaking? Thanks in advance. I have the following array that contain the people who are on off on certain time: Code: var all = [
["1234", "Jim", "2011-10-23 00:00:00", "2011-10-25 07:00:00"],
["1235", "Jack", "2011-10-21 00:00:00", "2011-10-21 08:00:00"],
["1236", "Jane", "2011-10-11 00:00:00", "2011-10-11 00:30:00"],
["1237", "June", "2011-10-20 00:00:00", "2011-10-20 12:00:00"],
["1238", "Jill", "2011-10-14 00:00:00", "2011-10-14 11:00:00"],
["1239", "John", "2011-10-16 00:00:00", "2011-10-16 10:30:00"],
["1240", "Jacab", "2011-10-19 00:00:00", "2011-10-20 08:30:00"]
];
The above array, I wish to use javascript to insert into the FullCalendar (http://arshaw.com/fullcalendar/). I notice that the only way seems to be using the FullCalendar array style (or structure) as follows: Code: $('#calendar').fullCalendar({
events: [
{
title : 'event1',
start : '2010-01-01'
},
{
title : 'event2',
start : '2010-01-05',
end : '2010-01-07'
},
{
title : 'event3',
start : '2010-01-09 12:30:00',
allDay : false // will make the time show
}
]
});
So, the question is: How do I insert my array to match with the FullCalendar array? cause FullCalendar array had a different array structure from my array - and I don't think so that I can write in this way: Code: $('#calendar').fullCalendar({
events:all
});
Appreciate any help provided. I can't seem to figure out how to accomplish this. In my website, I would like the user to input text into a single or multiple textbox(es) and then have the contents of the textbox(es) stored to either a variable or an array. Then I would like to have that variable/array compared to other arrays. Basically, the user is searching for items in a database. The user can search for as many or as little items as they want. Then the item(s) will be compared to multiple arrays to find out if what the user wants is in the database. So for example, let's say the user is searching for recipes that have all or part of these ingredients: chicken, broccoli, lemon, honey. So, there would have been a total of 4 textboxes...one for each ingredient. These ingredients are stored to an array..lets call it ingredient(). In the database of recipes, each recipe has its own array which includes the ingredients needed to make the recipe, we'll call them tag1(), tag2(), and tag3(). Now, I want the array, ingredient(), to be compared to each of the "tag" arrays to see if any of the "tag" arrays include exactly match the ingredient() tag in part or in whole. Is this possible? Hey guys, I'm hoping this is possible or that there is an easier way to do this. I'm having an issue with displaying data from one array that contains information about users in a table that is controlled by a different array. Is it possible to do this or is this use of arrays to display the data the wrong approach? The table is located on one webpage, I simply want to extract one piece of information that I have placed in the initial array as part of the login script that contains user information (for validation for login etc) and display it in a table on the new webpage that is opened as a result of successful validation of the user details. I'm completely stumped and after many attempts I just can't seem to get it to work. Hi, Here is a working code to copy 2d php array to 2d javascript array. Code: <html>
<head>
<?php
for($i = 0; $i < 3; $i++)
{
for($j = 0; $j < 2; $j++)
{$quest[$i][$j] = $i*10+$j;}
}
?>
<script type="text/javascript">
var questions = new Array(3);
for (var i = 0; i < 3; i++)
{
questions[i] = new Array(2);
}
questions[0] = ["<?php echo join("\", \"", $quest[0]); ?>"];
questions[1] = ["<?php echo join("\", \"", $quest[1]); ?>"];
questions[2] = ["<?php echo join("\", \"", $quest[2]); ?>"];
document.write(questions[0][0] + "<br />");
document.write(questions[0][1] + "<br />");
document.write(questions[1][0] + "<br />");
document.write(questions[1][1] + "<br />");
document.write(questions[2][0] + "<br />");
document.write(questions[2][1] + "<br />");
</script>
</head>
</html>
Now,here's the thing.Notice these lines in the code questions[0] = ["<?php echo join("\", \"", $quest[0]); ?>"]; questions[1] = ["<?php echo join("\", \"", $quest[1]); ?>"]; questions[2] = ["<?php echo join("\", \"", $quest[2]); ?>"]; I would like to put these lines in a loop,something like for (var i = 0; i < 3; i++) { questions[i] = ["<?php echo join("\", \"", $quest[i]); ?>"]; } But even after a lot of efforts I am unable to do so,what am I doing wrong?Thanks Hi, i can't find the mistake in my little script hope someone can help me. PHP Code: <?php /* -------------------- read thumbfolder -------------------- */ function isRdyPfD($filename){ if ($filename == '.' || $filename == '..') { // To-Top-Dir return false; } $ext = explode(".",$filename); $ext = $ext[sizeof($ext) - 1]; $allowedformats = array ( 'jpg', 'png', 'jpeg', 'gif' ); return in_array($ext,$allowedformats); } function getPicsfromDir($dir){ /* array with names of the pictures in $dir */ if (is_dir($dir)) { if ($dh = opendir($dir)) { $filearray = array(); while (($file = readdir($dh)) !== false) { if (isRdyPfD($file) === true) { $filearray[] = $file; } } closedir($dh); return $filearray; } } else { return false; } } // End Function $thumbs = getPicsfromDir("./images/thumbs/"); /* -------------------- thumbfolder -------------------- */ echo "<div id='thumbslider'>\n"; echo "<ul id='thumbs'>\n"; for($i = 0; $i < count($thumbs); $i++){ echo "<li><img src=\"./images/thumbs/$thumbs[$i]\" onclick=\"thumbClick($i)\" /></li>\n"; } echo "</ul>\n"; echo "</div>\n"; /* -------------------- big size images folder -------------------- */ $bigSizeImages = getPicsfromDir("./images/"); //print_r($bigSizeImages); $jsValue = ''; for ($j=0; $j < count($bigSizeImages); $j++){ $jsValue = $jsValue . $bigSizeImages[$j]; if ($j < (count($bigSizeImages)-1)) { $jsValue = $jsValue . ","; } } ?> <script type="text/javascript"> images = new Array(<?php echo $jsValue ?>); function thumbClick(pos){ //alert(pos); alert(images[pos]); } </script> I can't trace the images array values? thanks for a feedback!!! Hi, In a nutshell,can anyone tell me how to copy a 2d (two dimensional ,2 dimensional) php array to 2d javascript array?I would be obliged if anyone can provide me a method of doing that OR I have written a code to copy a 2d php array to a 2d javascript array.It is working but there is one problem(please see the following).Can anyone tell me what I am doing wrong here? The 2d php array is $quest[100][6] and the 2d javascript array is questions[100][6] . I have written the javascript code inside the <?php....?> itself using echo "<script language="javascript" type="text/javascript">.......</script>; Now ,inside the javascript,when I try to copy the 2d php array to the 2d javascript array using the following method it works questions[0]= ["<?php echo join("\", \"", $quest[0]); ?>"]; questions[1]= ["<?php echo join("\", \"", $quest[1]); ?>"]; ... and so on However, if I try to do the same using the following method it does not work for (var i= 0; i <= 99; i++) { questions[i]= ["<?php echo join("\", \"", $quest[i]); ?>"]; } Why is that?What mistake am I making?Any help will be deeply appreciated.Thanks -----------------------------THE CODE------------------------------------ <?php Access database and store result of mysq_query in $result....... $result = mysql_query($query); for ( $count = 0; $count <= 99; $count++) { $quest[$count]=mysql_fetch_array($result,MYSQL_NUM);; } echo "<script language="javascript" type="text/javascript"> var questions = new Array(100); for (var i = 0; i <100; i++) { questions[i] = new Array(6); } /*The following method of copying 2d php array to 2d javascript array is not working for ( var i = 0; i <= 99; i++) { questions[i]= ["<?php echo join("\", \"", $quest[i]); ?>"]; } */ /*The following method ,however,is working*/ questions[0]= ["<?php echo join("\", \"", $quest[0]); ?>"]; questions[1] = ["<?php echo join("\", \"",$quest[1]); ?>"]; questions[2] = ["<?php echo join("\", \"",$quest[2]); ?>"]; ....and so on </script>"; mysql_close($db_server); ?> |
|||||||