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Functions Collection

References

Renames and re-exports every

Collection Functions

  • every(collection: object | any[], predicate?: Function, guard?: any): boolean
  • Checks if predicate returns truthy for all elements of collection. Iteration is stopped once predicate returns falsey. The predicate is invoked with three arguments: (value, index|key, collection).

    Note: This method returns true for empty collections because everything is true of elements of empty collections.

    since

    5.3.0

    example
    every([true, 1, null, 'yes'], Boolean);
    // => false

    var users = [
    { 'user': 'barney', 'age': 36, 'active': false },
    { 'user': 'fred', 'age': 40, 'active': false }
    ];

    // The `matches` iteratee shorthand.
    every(users, { 'user': 'barney', 'active': false });
    // => false

    // The `matchesProperty` iteratee shorthand.
    every(users, ['active', false]);
    // => true

    // The `property` iteratee shorthand.
    every(users, 'active');
    // => false

    Parameters

    • collection: object | any[]

      The collection to iterate over.

    • Optional predicate: Function

      The function invoked per iteration.

    • Optional guard: any

      Enables use as an iteratee for methods like map.

    Returns boolean

    Returns true if all elements pass the predicate check, else false.