doesntContain()

The doesntContain method determines whether the collection does not contain a given item. You may pass a closure to the doesntContain method to determine if an element does not exist in the collection matching a given truth test:

const collection = collect([1, 2, 3, 4, 5]);

collection.doesntContain(value => value < 5);

// false

const collection = collect([1, 2, 3]);

collection.doesntContain(4);
// true

You may also use doesntContain on object based collections:

const collection = collect({
  name: 'Mohamed Salah',
  number: 11,
});

collection.doesntContain('Mohamed Salah');
// false

collection.doesntContain('Darwin Núñez');
// true

You may also pass a key / value pair to the contains method, which will determine if the given pair exists in the collection:

const collection = collect({
  name: 'Mohamed Salah',
  number: 11,
});

collection.doesntContain('name', 'Darwin Núñez');
// true

View source on GitHub (opens new window)