isEmpty

The isEmpty function checks if a value (object, array, string, Map, or Set) is empty.

Syntax

isEmpty(value): boolean

Parameters

Name	Type	Description
value	any	Value to be checked.

Return

Type	Description
boolean	Returns true if the value is empty, otherwise false.

Examples

isEmpty({}); // true
isEmpty([]); // true
isEmpty(''); // true
isEmpty({ a: 1 }); // false
isEmpty([1, 2]); // false

Notes

• Supports objects, arrays, strings, Map, and Set.
• Returns true for null.

References

• MDN: Object.keys()