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- function XO(str) {
- let x = 0;
- let o = 0;
- let ret = str.toLowerCase().split("")
- for( i = 0; i < ret.length; ++i) {
- if(ret[i] == "x")
- x++;
- if(ret[i] == "o")
- o++;
- };
- if(x === o)
- return true;
- else if (x !== o)
- return false;
- if(x === 0 && o === 0)
- return true;
- };
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