Is array a function?

// all following calls return true Array.isArray([]); Array.isArray([1]); Array.isArray(new Array()); Array.isArray(new Array(‘a’, ‘b’, ‘c’, ‘d’)); Array.isArray(new Array(3)); // Little known fact: Array.prototype itself is an array: Array.isArray(Array.prototype); // all following calls return false Array.isArray(); Array.isArray({}); …
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