Question

Let’s say I have the array ['dcab', 'feac', 'gwad', 'dnae'] but want to make it so that each 'a' is in its own token, eg ['dc', 'a', 'b', 'fe', 'a', 'c', 'gw', 'a', 'd', 'dn', 'a', 'e'];. How would I do that? Thanks!

Answer 1

var arr = ['dcab', 'feac', 'gwad', 'dnae'];
var result = [];
var i;
var s;

for (i = 0; i < arr.length; i++) {
    s = arr[i].split('a');
    result.push(s[0]);
    if (s.length > 1) {
        result.push('a');
        result.push(s[1]);
    }
}

Only works if each string contains exactly one or zero ‘a’ characters. You could iterate through the result of split if it could contain more.