aromig · December 20, 2017 17:35
diff --git a/replaceCharAt.js b/replaceCharAt.js
 String.prototype.replaceCharAt = function (index, character) {
    return this.substr(0, index) + character + this.substr(index + character.length);
 }
	String.prototype.replaceCharAt = function (index, character) {
	return this.substr(0, index) + character + this.substr(index + character.length);
	}