challenge-algorithms-v2.0-r.../09-mostRepeatedChar/index.js

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export function mostUsedChar(text) {
let max = 0,
maxChar = '';
text.split('').forEach(function(char){
if(text.split(char).length > max) {
max = text.split(char).length;
maxChar = char;
}
});
return maxChar;
}