Update descriptions of some older type snippets

This commit is contained in:
Angelos Chalaris
2020-03-05 23:06:26 +02:00
parent 0260fc759e
commit 69db3851ff
4 changed files with 9 additions and 8 deletions

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@ -5,7 +5,8 @@ tags: type,beginner
Returns the native type of a value.
Returns lowercased constructor name of value, `"undefined"` or `"null"` if value is `undefined` or `null`.
Return `"undefined"` or `"null"` if the value is `undefined` or `null`.
Otherwise, use `Object.prototype.constructor.name` to get the name of the constructor, `String.prototype.toLowerCase()` to return it in lowercase.
```js
const getType = v =>
@ -14,4 +15,4 @@ const getType = v =>
```js
getType(new Set([1, 2, 3])); // 'set'
```
```

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@ -5,7 +5,7 @@ tags: type,beginner
Returns `true` if the specified value is `null` or `undefined`, `false` otherwise.
Use the strict equality operator to check if the value and of `val` are equal to `null` or `undefined`.
Use the strict equality operator to check if the value of `val` is equal to `null` or `undefined`.
```js
const isNil = val => val === undefined || val === null;
@ -14,4 +14,4 @@ const isNil = val => val === undefined || val === null;
```js
isNil(null); // true
isNil(undefined); // true
```
```

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@ -5,7 +5,7 @@ tags: type,beginner
Returns `true` if the specified value is `null`, `false` otherwise.
Use the strict equality operator to check if the value and of `val` are equal to `null`.
Use the strict equality operator to check if the value of `val` is equal to `null`.
```js
const isNull = val => val === null;
@ -13,4 +13,4 @@ const isNull = val => val === null;
```js
isNull(null); // true
```
```

View File

@ -5,7 +5,7 @@ tags: type,beginner
Returns `true` if the specified value is `undefined`, `false` otherwise.
Use the strict equality operator to check if the value and of `val` are equal to `undefined`.
Use the strict equality operator to check if `val` is equal to `undefined`.
```js
const isUndefined = val => val === undefined;
@ -13,4 +13,4 @@ const isUndefined = val => val === undefined;
```js
isUndefined(undefined); // true
```
```