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Clarify use of map, add missing commas #3065

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Clarify use of map, add missing commas #3065

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db47bfa
Clarify use of map, add missing commas
webOS101 Jun 26, 2020
d77f759
Clarify false children aren't mapped
webOS101 Jun 29, 2020
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9 changes: 5 additions & 4 deletions content/docs/reference-react.md
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Original file line number Diff line number Diff line change
Expand Up @@ -222,13 +222,14 @@ Verifies the object is a React element. Returns `true` or `false`.

`React.Children` provides utilities for dealing with the `this.props.children` opaque data structure.

#### `React.Children.map` {#reactchildrenmap}
#### `React.Children.
` {#reactchildrenmap}

```javascript
React.Children.map(children, function[(thisArg)])
React.Children.map(children, function[, (thisArg)])
```

Invokes a function on every immediate child contained within `children` with `this` set to `thisArg`. If `children` is an array it will be traversed and the function will be called for each child in the array. If children is `null` or `undefined`, this method will return `null` or `undefined` rather than an array.
Invokes a function on every immediate child contained within `children` with `this` set to `thisArg`. If `children` is an array it will be traversed and the function will be called for each non-`false` child in the array. After mapping, any `null` or `undefined` children will be removed from the result. If children is `null` or `undefined`, this method will return `null` or `undefined` rather than an array.

> Note
>
Expand All @@ -237,7 +238,7 @@ Invokes a function on every immediate child contained within `children` with `th
#### `React.Children.forEach` {#reactchildrenforeach}

```javascript
React.Children.forEach(children, function[(thisArg)])
React.Children.forEach(children, function[, (thisArg)])
```

Like [`React.Children.map()`](#reactchildrenmap) but does not return an array.
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