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Results tagged with javascript
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user 53773
JavaScript is a versatile, high-level programming language. It is the programming language in all browsers.and can be used for back-end programming with node.js. Use this tag for questions regarding vanilla JavaScript; optionally tagged with an ECMAScript version. If you are using a preprocessor such as TypeScript please tag with that too.
20
votes
4
answers
341
views
"The 2nd Monitor" chatroom translator
For those who go to The 2nd Monitor chatroom, you already know how bad I am at remembering everything. And, sometimes, the new visitors will wonder what something means.
For that, I've developed a ve …
- 6,106
3
votes
2
answers
1k
views
Function queue for synchronous execution
The purpose of this code is to allow to add functions to a queue, that will execute them sequentially.
With this in mind, it also allows to execute them with a defined delay, to prevent them from blo …
- 6,106
8
votes
1
answer
430
views
Simple syntax highlighter in Javascript - SQL highlighting
Yesterday and today I've made a very basic syntax highlight.
It creates a function in the window object that handles part of the job:
(function(window){
var f=window.highlight = function(lang, …
- 6,106
2
votes
1
answer
85
views
Equalized PRNG number distribution
The main idea behind this code is to distribute multiple random numbers, but guarantee that the probability of each coming is equal.
The code is really basic:
( function( window ){
window.RNG = …
- 6,106
1
vote
1
answer
46
views
Equalized PRNG number distribution - Part 2
A few days ago, I've made a code to equally distribute a set of numbers and retrieve them randomly. Today, I've rewritten the code (most of it, at least). I've followed most of the advice and tried to …
- 6,106
8
votes
2
answers
7k
views
Simple function to verify if a number is integer
Since JavaScript doesn't distinguish between both, I've made an extremelly basic function.
function isInteger(num){
var numCopy = parseFloat(num);
return ! … Examples of results:
1.0: true (JavaScript treats <n>.0 as an integer)
1e3: true
1.2345e2: false (equivalent to 123.45)
1.2345e5: true (equivalent to 123450)
1e200: true (equivalent to Infinity)
Is …
- 6,106
2
votes
2
answers
12k
views
Simple function to generate an HTML-safe string
Sometimes, we have to do some fixing to insert a string into an HTML property. Or just to display it.
But not everything is safe! Consider the following example:
document.getElementById('name').inn …
- 6,106
1
vote
2
answers
1k
views
Re-implementing Javascript's String.prototype.indexOf
I had this idea of trying to re-implement the function String.prototype.indexOf in a way that could potentially be faster than the native function.
With some testing, I've doodled the following funct …
- 6,106
0
votes
2
answers
344
views
PageVisibility API, to handle page/tab visibility changes
Currently, I'm working on a project where I needed to run some code every time the page is hidden.
I searched high and low and found this question: Is there a way to detect if a browser window is not …
- 6,106
0
votes
1
answer
1k
views
jQuery .validate() plugin, additional method to validate numbers
It fulfills all my needs, but relies on a really bad behaviour in Javascript, which is that objects are passed as a reference. … It also relies on Javascript being executed linearly, instead of having multiple threads, which is REALLY bad!
How can I re-write this in a clean and decent way? …
- 6,106
1
vote
0
answers
792
views
Image color reduction
Just for the fun of it, I was looking of ways to make true-color GIFs.
I've started to write the code, and it clicked me: this won't work for that, but it does make a nice color-reduction method.
Bas …
- 6,106
4
votes
1
answer
408
views
Bootstrap file input styler
This simple JavaScript code styles all file inputs to match with Bootstrap's style. …
- 6,106
6
votes
1
answer
2k
views
Polyglot array_extend() function for Javascript and PHP
The goal is to grab n arrays (or Javascript Objects) and 'extend' them in order to obtain a single array with all the values.
This function runs both in Javascript and PHP. … $result = $javascript ? new Object() : array();
$arguments = $javascript? …
- 6,106
4
votes
1
answer
132
views
Polyglot function to sum all the numbers in an array in Javascript and PHP
This is due to the limitations of Javascript. … is just to save if we are running in Javascript or PHP). …
- 6,106
5
votes
2
answers
1k
views
List all repeated substrings with a fixed length
While fiddling around, I've made a very simple and naive function to retrieve any repeated sub-string within a certain string.
function getRepetitions(str, length){
if(isNaN(length))
{
…
- 6,106