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Updated JS array containing 1-to-n for ES6

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Updated JS array containing 1-to-n to use arrow functions
This commit is contained in:
Felix M
2017-02-03 17:00:57 +01:00
committed by GitHub
parent c58d374c4f
commit 54744c658c
1 changed files with 2 additions and 6 deletions
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8
javascript/create-an-array-containing-1-to-n.md
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@@ -14,9 +14,7 @@ That gives us `0` through `9`. To get `1` through `10`, we can tweak it
slightly: slightly:
```javascript ```javascript
> Array.apply(null, {length: 10}).map(Number.call, function(n) { > Array.apply(null, {length: 10}).map(Number.call, n => { return Number(n) + 1 });
return Number(n) + 1;
});
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
``` ```
@@ -26,9 +24,7 @@ To generalize this, we can replace `10` with `N` and then just expect that
```javascript ```javascript
> var N = 10; > var N = 10;
=> undefined => undefined
> Array.apply(null, {length: N}).map(Number.call, function(n) { > Array.apply(null, {length: N}).map(Number.call, n => { return Number(n) + 1 });
return Number(n) + 1;
});
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
``` ```