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(function () {
if (typeof Object.freeze != 'function') {
Object.freeze = function (obj) { return obj; }
}
if (typeof Object.create != 'function') {
Object.create = (function() {
var Temp = function() {};
return function (prototype) {
if(prototype !== Object(prototype) && prototype !== null) {
throw TypeError('Argument must be an object or null');
}
if (prototype === null) {
throw Error('null [[Prototype]] not supported');
}
Temp.prototype = prototype;
var result = new Temp();
Temp.prototype = null;
return result;
};
})();
}
if (typeof Object.defineProperty != 'function') {
Object.defineProperty = function defineProperty(object, property, descriptor) {
if ('value' in descriptor) {
object[property] = descriptor.value;
}
return object;
};
}
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (searchElement, fromIndex) {
var k;
if (this == null) {
throw new TypeError('"this" is null or not defined');
}
var o = Object(this);
var len = o.length >>> 0;
if (len === 0) {
return -1;
}
var n = +fromIndex || 0;
if (Math.abs(n) === Infinity) {
n = 0;
}
if (n >= len) {
return -1;
}
k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
while (k < len) {
if (k in o && o[k] === searchElement) {
return k;
}
k++;
}
return -1;
};
}
})();
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