Map-clear-2.js - mozsearch

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// Clearing a Map removes its entries; the Map remains usable afterwards.

var m = new Map([["a", "b"], ["b", "c"]]);

assertEq(m.size, 2);

m.clear();

assertEq(m.size, 0);

assertEq(m.has("a"), false);

assertEq(m.get("a"), undefined);

assertEq(m.delete("a"), false);

assertEq(m.has("b"), false);

for (var pair of m)

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

m.set("c", "d");

assertEq(m.size, 1);

assertEq(m.has("a"), false);

assertEq(m.has("b"), false);