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[doc] add eslint rule reference for no-new-wrappers

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Pirasis Leelatanon
2017-10-26 02:36:13 +07:00
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parent 2676cbfb2f
commit 327795bf3c
1 changed files with 6 additions and 3 deletions
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@@ -2796,11 +2796,14 @@ Other Style Guides
- [22.1](#coercion--explicit) Perform type coercion at the beginning of the statement.
<a name="coercion--strings"></a><a name="21.2"></a>
- [22.2](#coercion--strings) Strings:
- [22.2](#coercion--strings) Strings: eslint: [`no-new-wrappers`](https://eslint.org/docs/rules/no-new-wrappers)
```javascript
// => this.reviewScore = 9;
// bad
const totalScore = new String(this.reviewScore); // typeof totalScore is "object" not "string"
// bad
const totalScore = this.reviewScore + ''; // invokes this.reviewScore.valueOf()
@@ -2812,7 +2815,7 @@ Other Style Guides
```
<a name="coercion--numbers"></a><a name="21.3"></a>
- [22.3](#coercion--numbers) Numbers: Use `Number` for type casting and `parseInt` always with a radix for parsing strings. eslint: [`radix`](http://eslint.org/docs/rules/radix)
- [22.3](#coercion--numbers) Numbers: Use `Number` for type casting and `parseInt` always with a radix for parsing strings. eslint: [`radix`](http://eslint.org/docs/rules/radix) [`no-new-wrappers`](https://eslint.org/docs/rules/no-new-wrappers)
```javascript
const inputValue = '4';
@@ -2859,7 +2862,7 @@ Other Style Guides
```
<a name="coercion--booleans"></a><a name="21.6"></a>
- [22.6](#coercion--booleans) Booleans:
- [22.6](#coercion--booleans) Booleans: eslint: [`no-new-wrappers`](https://eslint.org/docs/rules/no-new-wrappers)
```javascript
const age = 0;