Array.of()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since â¨2015å¹´9æâ©.
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console.log(Array.of("foo", 2, "bar", true));
// Expected output: Array ["foo", 2, "bar", true]
console.log(Array.of());
// Expected output: Array []
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Array.of(element0)
Array.of(element0, element1)
Array.of(element0, element1, /* ⦠,*/ elementN)
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elementN-
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Array.of(1); // [1]
Array.of(1, 2, 3); // [1, 2, 3]
Array.of(undefined); // [undefined]
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function NotArray(len) {
console.log("NotArray called with length", len);
}
console.log(Array.of.call(NotArray, 1, 2, 3));
// NotArray called with length 3
// NotArray { '0': 1, '1': 2, '2': 3, length: 3 }
console.log(Array.of.call(Object)); // [Number: 0] { length: 0 }
When the this value is not a constructor, a plain Array object is returned.
console.log(Array.of.call({}, 1)); // [ 1 ]
Polyfill
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if (!Array.of) {
Array.of = function () {
return Array.prototype.slice.call(arguments);
};
}
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| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-array.of |