how convert to array properly with special character in string [duplicate]

i want to split string to array,but if the string contain é,the split method not work

var string = "JonBenét";
var arrays = string.split("");

why arrays like this ?

Array(9) [ “J”, “o”, “n”, “B”, “e”, “n”, “e”, “́”, “t” ]

i want convert like this,any suggestion thanks very much

Array(8) [ “J”, “o”, “n”, “B”, “e”, “n”, “é”, “t” ]

i try Array.string(string),but it still convert
Array(9) [ “J”, “o”, “n”, “B”, “e”, “n”, “e”, “́”, “t” ]