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What are JavaScript Best practices To Apply to jQuery And JavaScript code?

¡list of things to do, and not to do, when developing JavaScript and jQuery!

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Question added by Mahmoud Manaa , Network Engineer , Zain - Kuwait
Date Posted: 2013/11/04
Clodelio Delfino
by Clodelio Delfino , Managing Consultant , Startup Company

Just a random JS tips...

1. Optimize selectors for Sizzle’s ‘right to left’ model

$('.class span.class2') - OK

$('#id div.class') - Recommended

 

2. Don’t load code that isn’t needed or until it is needed

3. Load the framework from CDN or better using Google Code

4. Use lazy loading especially from image/s

5. When emptying nodes: always prefer removeNode() over innerHTML = ''

6. Optimising a selectors

$('div.content') Slower

$('#container div.content') Slow

$('#container').find('div.content') Fast

Jonathan de Flaugergues
by Jonathan de Flaugergues , software engineer , Abbeal

The best practice is to not use jQuery.

This library is now useless and deprecated with the last framework as React and Angular.

Maisnam Raju Singh
by Maisnam Raju Singh , web developer , Comnicate

Avoid global namespacing

minification and obfuscation 

 

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