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cheeaun/one-line-variables-swap.js

Created July 5, 2010 02:26
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JavaScript one-liner to swap two variables
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one-line-variables-swap.js
// via http://twitter.com/izs/statuses/17744109574
var foo = 1;
var bar = 2;
foo = [bar, bar = foo][0];
@jerryasher
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Line 5 has a typo in it.

@suifengtec
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swap(x,y){ y = (function(x){ return x })(x, x=y); }

ES6+:
swap(x,y){ return [y,x] }

@jerrylau91
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ES6 is much better.

@esco
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esco commented Jul 5, 2018 

let x=1
let y=2
{x,y} = {x:y, y:x}

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