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- function mutation(arr) {
- var container = arr[0].toLowerCase();
- var letters = arr[1];
- letters = letters.toLowerCase().split("");
- letters.forEach(function(letter){
- if(container.indexOf(letter) === -1){
- console.log(container.indexOf(letter));
- return false;
- }
- });
- return true;
- }
- mutation(["hello", "Hey"]);
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