Tests for ES6 arrow function calling On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS af0(10) is 11 PASS af1(10) is 20 PASS af2(1212) is 1000 PASS af2_1(121) is a PASS af3(11,12) is 23 PASS afwrapper(x => 1234) is 1234 PASS afwrapper(x => 1234, 2345) is 1234 PASS afwrapper(x => 121 + 232) is 353 PASS afwrapper(x => 123 + 321, 9999) is 444 PASS afwrapper(x => x + 12, 21) is 33 PASS afwrapper((x) => x + 21, 32) is 53 PASS afwrapper(() => 100) is 100 PASS afwrapper(() => ext_value) is 121 PASS afwrapper(() => ext_value * 10) is 1210 PASS afwrapper((x) => ext_value * x, 30) is ext_value * 30 PASS afwrapper(() => 100, 11) is 100 PASS afwrapper(() => 100 + 10) is 110 PASS afwrapper(() => 100 + 11, 12) is 111 PASS arrowFunction4(1011) is 1012 PASS xyz1 is 10101 PASS afwrapper2((x, y) => x + y, 12 ,43) is 55 PASS afArr0[0](10) is 100 PASS afArr1[0](10) is 11 PASS afArr1[1](11) is 13 PASS afArr2[0](11) is 12 PASS afArr2[1](11) is 13 PASS afArr3[0](11) is 101 PASS afArr3[1](11) is 12323 PASS afObj.func(11) is 23 PASS afBlock0(11) is 1000 PASS afBlock1(11) is 1100 PASS afBlock2(11) is 2200 PASS afBlock3(11, 12222) is 134442 PASS (function funcSelfExecAE1(value) { var f = x => x+1; return f(value);})(123); is 124 PASS (function funcSelfExecAE2(value) { var f = x => { x++; return x + 1; }; return f(value);})(123); is 125 PASS (function funcSelfExecAE3(value) { var f = (x) => { x++; return x + 1; }; return f(value);})(123); is 125 PASS (function funcSelfExecAE4(value) { var f = (x, y) => { x++; return x + y; }; return f(value, value * 2);})(123); is 370 PASS successfullyParsed is true TEST COMPLETE