20 lines
442 B
Markdown
20 lines
442 B
Markdown
### times
|
|
|
|
Iterates over a callback `n` times
|
|
|
|
Use `Function.call()` to call `fn` `n` times or until it returns `false`.
|
|
Omit the last argument, `context`, to use an `undefined` object (or the global object in non-strict mode).
|
|
|
|
```js
|
|
const times = (n, fn, context = undefined) => {
|
|
let i = 0;
|
|
while (fn.call(context, i) !== false && ++i < n) {}
|
|
}
|
|
```
|
|
|
|
```js
|
|
var output = '';
|
|
times(5, i => output += i);
|
|
console.log(output); // 01234
|
|
```
|