Set-clear-2.js - mozsearch

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// Clearing a Set removes its elements; the Set remains usable afterwards.

var s = new Set(["x", "y", "z", "z", "y"]);

assertEq(s.size, 3);

s.clear();

assertEq(s.size, 0);

assertEq(s.has("x"), false);

assertEq(s.delete("x"), false);

assertEq(s.has("z"), false);

for (var v of s)

    throw "FAIL";  // shouldn't be any elements

s.add("y");

assertEq(s.size, 1);

assertEq(s.has("x"), false);

assertEq(s.has("z"), false);