tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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testDirectProxySetArray3.js (602B)

      1 // Assigning to the length property of a proxy to an array
      2 // calls the proxy's defineProperty handler.
      3 
      4 var a = [0, 1, 2, 3];
      5 var p = new Proxy(a, {
      6    defineProperty(t, id, desc) {
      7        hits++;
      8 
      9        // ES6 draft rev 28 (2014 Oct 14) 9.1.9 step 5.e.i.
     10        // Since the property already exists, the system only changes
     11        // the value. desc is otherwise empty.
     12        assertEq(Object.getOwnPropertyNames(desc).join(","), "value");
     13        assertEq(desc.value, 2);
     14        return true;
     15    }
     16 });
     17 var hits = 0;
     18 p.length = 2;
     19 assertEq(hits, 1);
     20 assertEq(a.length, 4);
     21 assertEq(a[2], 2);