Exes and Ohs
Check to see if a string has the same amount of ‘x’s and ‘o’s. The method must return a boolean and be case insensitive. The string can contain any char.
Examples input/output:
XO("ooxx") => true
XO("xooxx") => false
XO("ooxXm") => true
XO("zpzpzpp") => true // when no 'x' and 'o' is present should return true
XO("zzoo") => false
Reply
//method 1：
XO = str => {
return str.toLowerCase().split('x').length == str.toLowerCase().split('o').length
}
//method 2：
XO = str => {
let x = str.match(/x/gi);
let o = str.match(/o/gi);
return (x && x.length) === (o && o.length);
}
