// If Array.of tries to overwrite a non-configurable property, it throws a TypeError. | |
load(libdir + "asserts.js"); | |
function C() { | |
Object.defineProperty(this, 0, {value: "v", configurable: false}); | |
} | |
assertThrowsInstanceOf(() => Array.of.call(C, 1, 2, 3), TypeError); |