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InitCap / Proper Case / Came Case a Sentence in JavaScript ,,, forked from http://jsfiddle.net/rf3GJ/16/

by dledle2

HTML

<div id="123">aaa</div>

JavaScript

str = "hEllo woRld";
zzzString.prototype.initCap = function () {
    return this.toLowerCase().replace(/(?:^|\s)[a-z]/g, function (m) {
        return m.toUpperCase();
    });
};
console.log(str.initCap());