T.T.T.16: Warning of Array.map()

Description:

Task

Complete function warning, accept an array arr and a function func as arguments. if the funtion can be used for the array.map(), return "Passed!". If not, return "Failed!".

Examples

arr=[1, 2, 3]  func= x=>x+1
warning(arr,func)  ===  "Passed!"

arr=[1, 2, 3]  func= x=>x.toUpperCase()
warning(arr,func)  ===  "Failed!"

arr=["1","2","3"]  func= x=>x.toUpperCase()
warning(arr,func)  ===  "Passed!"

arr=["1","2","3"]  func= x=>x+1
warning(arr,func)  ===  "Passed!"

arr=["1","2","3"]  func= x=>x.toFixed(2)
warning(arr,func)  ===  "Failed!"

arr=["1","2","3"]  func= x=>x.slice()
warning(arr,func)  ===  "Passed!"

arr=[[1],[2],[3]]  func= x=>x.slice()
warning(arr,func)  ===  "Passed!"

arr=[[1],[2],[3]]  func= x=>x+1
warning(arr,func)  ===  "Passed!"

arr=[true,false,true]  func = x=>x.toFixed(2)
warning(arr,func)  ===  "Failed!"

arr=[1,"2",[3]]  func= x=>x+1
warning(arr,func)  ===  "Passed!"

arr=["1","2",[3]]  func= x=>x.slice()
warning(arr,func)  ===  "Passed!"

arr=[1,"2",[3]]  func= x=>x.slice()
warning(arr,func)  ===  "Failed!"

arr=[1,"2",[3]]  func= x=>x.noSuchAFunction()
warning(arr,func)  ===  "Failed!"

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Created	Aug 3, 2016
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