The collection to iterate over.
Optionalpredicate: FunctionThe function invoked per iteration.
Optionalguard: anyEnables use as an iteratee for methods like map.
Returns true if all elements pass the predicate check,
else false.
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
Checks if
predicatereturns truthy for all elements ofcollection. Iteration is stopped oncepredicatereturns falsey. The predicate is invoked with three arguments: (value, index|key, collection).Note: This method returns
truefor empty collections because everything is true of elements of empty collections.