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jQuery Switch Statement

By Sam Deering

JavaScript

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How to declare switch statements using JavaScript. Pretty handy to know it will save you lots of time when executing different code depending the value of variable.

var jsLang = 'jquery';
switch (jsLang) { 
	case 'jquery': 
		alert('jQuery Wins!');
		break;
	case 'prototype': 
		alert('prototype Wins!');
		break;
	case 'mootools': 
		alert('mootools Wins!');
		break;		
	case 'dojo': 
		alert('dojo Wins!');
		break;
	default:
		alert('Nobody Wins!');
}
//outputs "jQuery Wins!"

You can also fall through to match multiple cases by omitting the breaks like so:

var jsLang = 'prototype';
switch (jsLang) { 
	case 'jquery': 
		alert('jQuery sucks!');
		break;
	case 'prototype': 
		alert('prototype sucks!');
	case 'mootools': 
		alert('mootools sucks!');	
	case 'dojo': 
		alert('dojo sucks!');
		break;
	default:
		alert('Nobody sucks!');
}
//outputs "prototype sucks! mootools sucks! dojo sucks!"

Sam Deering has 15+ years of programming and website development experience. He was a website consultant at Console, ABC News, Flight Centre, Sapient Nitro, and the QLD Government and runs a tech blog with over 1 million views per month. Currently, Sam is the Founder of Crypto News, Australia.

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