For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt, and this page is available as Markdown at /reference/predicate/isEmpty.md.
Install massaman

    isEmpty

    Checks if a value is empty.

    • Strings: ''
    • Arrays: length === 0
    • Maps/Sets: size === 0
    • Objects: no own enumerable keys
    isEmpty('') // true
isEmpty([]) // true
isEmpty({}) // true
isEmpty(new Map()) // true

    Usage

    isEmpty(value: string | object)

    Checks if a value is empty.

    • Strings: ''
    • Arrays: length === 0
    • Maps/Sets: size === 0
    • Objects: no own enumerable keys
    import { isEmpty } from 'massaman'
// or:  import { isEmpty } from 'massaman/predicate'

isEmpty('') // true
isEmpty([]) // true
isEmpty({}) // true
isEmpty(new Map()) // true

    Parameters

    valuestring | objectrequired

    the value to test.

    Returns

    whether the supported value contains no elements or own enumerable properties.

    boolean