false
for all elements in a collection.Array.prototype.some()
to test if any elements in the collection return true
based on fn
.fn
, to use Boolean
as a default.const none = (arr, fn = Boolean) => !arr.some(fn);
none([0, 1, 3, 0], x => x == 2); // true none([0, 0, 0]); // true
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