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Results tagged with javascript
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user 79668
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
Accepted
15
votes
Accepted
Functions to hide and reclaim first visible publication on a page using Selenium
As the code is similar, they can be merged together.
I'll suggest you to break down the functions into smaller reusable chunks which will follow the Single Responsibility Principle (SRP). These funct …
- 3,002
14
votes
Accepted
Basic JavaScript template engine using replace, match and RegExp
JavaScript
match => map => n * replace
In the three functions, you're first using match to get the matches then iterating over it and using replace inside it. This is not at all necessary. … Which equals operator (== vs ===) should be used in JavaScript comparisons?
For default values, || can be used instead of ternary.
The default value for _array should be [] instead of {}. …
- 3,002
13
votes
Extract numbers from a string-Javascript
The code will fail in below cases:
Negative numbers
Decimal numbers
Units other than px(e.g. pt, %, vw, vh, ...)
Moreover, the numbers array contains space before numbers and an empty string at th …
- 3,002
12
votes
Accepted
Get character occurence count along with character in a string
I don't see any problem in your code except using of equality and inequality operators. Use strict equality(===) & inequality(!==) operators.
I'll suggest to use RegEx.
.replace(/(.)\1*/g, functio …
- 3,002
12
votes
Accepted
Palindrome checker in JavaScript
return str === reversedStr;
See Which equals operator (== vs ===) should be used in JavaScript comparisons? …
- 3,002
11
votes
Accepted
Using regex to replace strange characters
Note that in these demos, PHP is selected as the steps taken to match is not shown for JavaScript. … The effect should be similar in JavaScript.
Note that the __(two underscores) are redundant as _ is already added in character class and with g flag it'll remove all occurrences. …
- 3,002
8
votes
Determining if two words are anagrams
Your solution is not removing punctuations and spaces before checking if two strings are Anagrams.
Also, the code can be optimized.
First, remove all the spaces and punctuation marks from both the …
- 3,002
6
votes
Convert Persian and Arabic digits to English
You can use capture groups
return string.replace(/([٠١٢٣٤٥٦٧٨٩])|([۰۱۲۳۴۵۶۷۸۹])/g, function(m, $1, $2) {
return m.charCodeAt(0) - ($1 ? 1632 : 1776);
});
$1 is the character matched by [٠١٢٣٤٥٦ …
- 3,002
6
votes
Accepted
Add/Remove class on scroll depending on scroll length
The code can made very short.
$(window).scroll(function () {
var scrollTop = $(document.body).hasClass('home') ? 510 : 293;
$('#navigation-wrapper').toggleClass('navbar-fixed-top', $(this).sc …
- 3,002
6
votes
JavaScript Rain
See What is the (function() { } )() construct in JavaScript?
Implicit Global
Variable i used in for is implicit global. It is not declared(no var, let, const) but used. … JavaScript provides a better way to get the width and height of browser. So, 1600 will become window.innerWidth and 1400 will become window.innerHeight. …
- 3,002
5
votes
Accepted
Loop through string array with exit if test passed
Join the string to create a jQuery selector
var elementTypes = ['btn', 'textbox', 'ui-jqgrid', 'flexboxdiv', 'headerlabel'];
var selector = '.' + elementTypes.join(', .');
return $('.TestModule').fi …
- 3,002
5
votes
Accepted
Dynamic attribute key selector
Naming Conventions
The variable all doesn't tell what it contains. allElements does reflect what it contains.
clean, i, foo, capture - huh?
filter, the name of the function has nothing to do with …
- 3,002
5
votes
A function to split an string of alphabets and numbers into arrays and sort them respectively
You can use RegEx to extract the sequence of alphabets or numbers.
To match alphabets/number, use character class in Regular expression as below
/[A-Z]+|[0-9]+/
to match all occurrences, use g(glob …
- 3,002
4
votes
Accepted
Tooltip-overlay following the mouse pointer
Should I try to concentrate more on JavaScript only? I mean: Should I try to reduce the mandatory HTML-, CSS-code to a minimun?
I think, the code i.e. HTML and CSS are minimal. … Storing the tooltip on the HTML elements is correct way rather than storing it in JavaScript. So, NO. You should not only concentrate on JavaScript.
Or is Okay the way I have done it? …
- 3,002