JavaScript array to string, string to array

1     //--------------------Array to string---------------------------2 3     //you need to concatenate an array element with a character into a string4     varA1, B1,c1;5A1 = ["A", "B", "C", "D", "E"];6B1 = A1.join ('-');//a-b-c-d-e using-stitching array elements7C1 = A1.join (");//ABCDE8 9 Ten     //--------------------string to array--------------------------- One  A     //The implementation method is to cut a string into several strings by one character and return as an array -     varstr = ' Ab-c-de '; -     varA2 = Str.split ('-');//[AB, C, de] the     varB2 = Str.split (");//[A, B,-, C,-, D, E] -  -  -      +     

JavaScript array to string, string to array