tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Array-of-surfaces.js (520B)

      1 // Check superficial features of Array.of.
      2 
      3 load(libdir + "asserts.js");
      4 
      5 var desc = Object.getOwnPropertyDescriptor(Array, "of");
      6 assertEq(desc.configurable, true);
      7 assertEq(desc.enumerable, false);
      8 assertEq(desc.writable, true);
      9 assertEq(Array.of.length, 0);
     10 assertThrowsInstanceOf(() => new Array.of(), TypeError);  // not a constructor
     11 
     12 // When the this-value passed in is not a constructor, the result is an array.
     13 for (let v of [undefined, null, false, "cow"])
     14    assertEq(Array.isArray(Array.of.call(v)), true);