Tagged Questions
63
votes
33answers
12k views
JavaScript - Are loops really faster in reverse…?
I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find ...
1
vote
2answers
115 views
For Loop in JavaScript - Lottery Website
I am trying to turn this code into a correct for loop statement, so that I can save my repetitions. I have tried my best to get it done, but I just don't know how I can write it correctly:
function ...
1
vote
3answers
447 views
Do while javascript Problem
I'm trying to send multiple post within a do while loop but the result is not added
<script type="text/javascript">
function action() {
var initval = 1;
var endval = 5;
do {
var ...
3
votes
2answers
474 views
In JavaScript, why is a “reverse while” loop an order of magnitude faster than “for”?
In these benchmarks, http://jsperf.com/the-loops, Barbara Cassani showed that a "reverse while" loop is way faster,
while (iterations > 0) {
a = a + 1;
a = a - 1;
iterations--;
}
...
1
vote
3answers
410 views
jquery compare the height beneath img to h2's height
I am trying to adapt this:
var h2=$('.block h2');
var divh=$('.block').height();
while ($(h2).outerHeight()>divh) {
alert('enters while');
$(h2).text(function (index, text) {
...
1
vote
2answers
802 views
loop is too slow for IE7/8
I have a loop execution that needs to run in all browsers.
in chrome/ff etc the execution runs fast and fine. in IE it's slow and end's up dispatching a prompt saying a script is running slow (no ...
0
votes
3answers
161 views
JavaScript while loop get select option and hide option from other select boxes
I'm trying to develop a football teamline function that will store up to 18 players (11 starting players and 7 subs) using a select box for each player.
When a player is selected from one select box ...
0
votes
2answers
949 views
While loop in jquery of dynamic id and class
I have have multiple divs' with similar code within it, but also has a unique id within the main div that calls a toggleClass & slideToggle function. I'm trying to create a loop so that I do not ...
0
votes
3answers
983 views
javascript, while loop
i'm trying to get my script to wait for user input (click of a button) before continuing, this is v feasible in other languages, but seems impossible in js. basically, i want the user to select an ...
-1
votes
1answer
261 views
Apply php/MySql while loop in javascript object [closed]
I would like to take the following php/mysql loop, and apply the results: $test,$test1,$test2 to the var Data object in the javascript code. This will make the var Data dynamic, pulling its data to ...
