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Merge pull request #44 from cengels/time-taken-as-callback-function

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Refactor measure-time-taken-by-function from spread syntax to callback function
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Angelos Chalaris
2017-12-13 13:54:38 +02:00
committed by GitHub
parent 3bfba2bb69 dcea680b08
commit 33075aa734
1 changed files with 3 additions and 3 deletions
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6
snippets/measure-time-taken-by-function.md
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@ -4,10 +4,10 @@ Use `performance.now()` to get start and end time for the function, `console.log
First argument is the function name, subsequent arguments are passed to the function.
```js
const timeTaken = (func,...args) => {
var t0 = performance.now(), r = func(...args);
const timeTaken = callback => {
const t0 = performance.now(), r = callback();
console.log(performance.now() - t0);
return r;
}
// timeTaken(Math.pow, 2, 10) -> 1024 (0.010000000009313226 logged in console)
// timeTaken(() => Math.pow(2, 10)) -> 1024 (0.010000000009313226 logged in console)
```