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| <!DOCTYPE html> | |
| <meta charset=utf-8 /> | |
| <title>Defining JavaScript functions, the ES6 way</title> | |
| <h1>Defining JavaScript functions, the ES6 way</h1> | |
| <em>Use Firefox 22 (Firefox Nightly)</em> | |
| <script> | |
| // old school | |
| var square = function(x) { | |
| return x * x; | |
| } | |
| console.log(square(3)); | |
| // Expression closures | |
| // doc: http://mzl.la/10TNpzc | |
| var square = function(x) x * x; | |
| console.log(square(3)); | |
| // Arrow functions | |
| // spec: http://bit.ly/KN3z1c | |
| var square = x => { return x * x; }; | |
| console.log(square(3)); | |
| // Arrow function + expression closure | |
| var square = x => x * x; | |
| console.log(square(3)); | |
| // Destructuring assignment | |
| // doc: http://mzl.la/Xed4Ua | |
| var squareAndCube = x => [x*x, x*x*x]; | |
| var [s,c] = squareAndCube(3); | |
| console.log(s + ", " + c); | |
| </script> |
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