{"testsCollection":{"name":"Chapter - 15.4.4.4","numTests":"1","tests":[{"code":"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","commentary":"","description":"Array.prototype.concat will concat an Array when index property (read-only) exists in Array.prototype (Step 5.b.iii.3.b)","path":"TestCases/chapter15/15.4/15.4.4/15.4.4.4/15.4.4.4-5-b-iii-3-b-1.js"}]}}