/* Any copyright is dedicated to the Public Domain. * http://creativecommons.org/licenses/publicdomain/ */ // Symbol.for called twice with the same argument returns the same symbol. assertEq(Symbol.for("ponies"), Symbol.for("ponies")); // Called twice with equal strings: still the same result. var one = Array(64+1).join("x"); var two = Array(8+1).join(Array(8+1).join("x")); assertEq(Symbol.for(one), Symbol.for(two)); // Symbols created by calling Symbol() are not in the symbol registry. var sym = Symbol("123"); assertEq(Symbol.for("123") !== sym, true); // Empty string is fine. assertEq(typeof Symbol.for(""), "symbol"); // Primitive arguments. assertEq(Symbol.for(3), Symbol.for("3")); assertEq(Symbol.for(null), Symbol.for("null")); assertEq(Symbol.for(undefined), Symbol.for("undefined")); assertEq(Symbol.for(), Symbol.for("undefined")); // Symbol.for ignores the 'this' value. var foo = Symbol.for("foo") assertEq(Symbol.for.call(String, "foo"), foo); assertEq(Symbol.for.call(3.14, "foo"), foo); if (typeof reportCompare === "function") reportCompare(0, 0);