isEmpty() function
Checks if value is an empty object, collection, map, or set.
Objects are considered empty if they have no own enumerable string keyed properties.
Array-like values such as arguments objects, arrays, buffers, strings, or jQuery-like collections are considered empty if they have a length of 0. Similarly, maps and sets are considered empty if they have a size of 0.
Signature:
typescript
export declare function isEmpty(value: any): boolean;Parameters
Parameter | Type | Description |
|---|---|---|
value | any | The value to check. |
Returns:
boolean
{boolean} Returns true if value is empty, else false.
Example
isEmpty(null); // => true
isEmpty(true); // => true
isEmpty(1); // => true
isEmpty([1, 2, 3]); // => false
isEmpty({ 'a': 1 }); // => false