js-utils.js

var logger = console ? console : {
  "log": function() {
    // It does nothing.
  }
};

/**
 * Number.prototype.format(n, x, s, c)
 * 
 * @param integer n: length of decimal
 * @param integer x: length of whole part
 * @param mixed   s: sections delimiter
 * @param mixed   c: decimal delimiter
 */
Number.prototype.format = function(n, x, s, c) {
    var regex = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\D' : '$') + ')',
        num = this.toFixed(Math.max(0, ~~n));

    return (c ? num.replace('.', c) : num).replace(new RegExp(regex, 'g'), '$&' + (s || ','));
};

/**
 * It returns a function that binds the given function with the given context and runs it.
 * e.g.)
 * function enclosing() {
 *   this.name = "Kevin";
 *   var $someElem = $('#someElem');
 *   $someElem.on('click', _bind_(function(event) {
 *     event.preventDefault();
 *     $someElem.val(this.name); // this is now the enclosing function object.
 *   }, this));
 * }
 * @param function fn
 * @param Object theContext
 */
var _bind_ = function _bind_(fn, theContext) {
  return function() {
    return fn.apply(theContext, arguments);
  };
};

var makeClickable = function makeClickable(selector, callback) {
  $(selector).on('click', function(event) {
    callback.call(this, event);
  }).css('cursor', 'pointer');
};