javascript - remainder -

Remainder (%)

The remainder operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend.

Syntax

Operator: var1 % var2

Examples

12 % 5 // 2
-1 % 2 // -1
1 % -2 // 1
NaN % 2 // NaN
1 % 2 // 1
2 % 3 // 2
-4 % 2 // -0
5.5 % 2 // 1.5

(function() {
  "use strict";
  var SomeText = function(text) {
    this.text = text;
  };
  SomeText.prototype.capify = function(str) {
    var firstLetter = str.charAt(0);
    var remainder = str.substring(1);
    return [firstLetter.toUpperCase(), remainder].join("");
  };
  SomeText.prototype.capifyWords = function() {
    var result = [];
    var textArray = this.text.split(" ");
    for (var counter = 0; counter < textArray.length; counter++) {
      result.push(this.capify(textArray[counter]));
    }
    return result.join(" ");
  };

  document.getElementById("main_button").addEventListener("click", function(e) {
    var something = prompt("Give me something to capitalize");
    var newText = new SomeText(something);
    alert(newText.capifyWords());
  });
}());