concatenate letters in js code example
Example 1: javascript add to string
var s = 'hell'
s = s + 'o'
Example 2: string concatenation js
var aString="";
aString.concat(value1, value2, ... value_n);
var s = 'hell'
s = s + 'o'
var aString="";
aString.concat(value1, value2, ... value_n);