Test to ensure correct behaviour of Array.array On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS Array.isArray([]) is true PASS Array.isArray(new Array) is true PASS Array.isArray(Array()) is true PASS Array.isArray('abc'.match(/(a)*/g)) is true PASS (function(){ return Array.isArray(arguments); })() is false PASS Array.isArray() is false PASS Array.isArray(null) is false PASS Array.isArray(undefined) is false PASS Array.isArray(true) is false PASS Array.isArray(false) is false PASS Array.isArray('a string') is false PASS Array.isArray({}) is false PASS Array.isArray({length: 5}) is false PASS Array.isArray({__proto__: Array.prototype, length:1, 0:1, 1:2}) is false PASS successfullyParsed is true TEST COMPLETE