raygun4js/src/polyfills.js

Raygun.io plugin for JavaScript

// Mozilla's toISOString() shim for IE8
if (!Date.prototype.toISOString) {
    (function () {
        function pad(number) {
            var r = String(number);
            if (r.length === 1) {
                r = '0' + r;
            }
            return r;
        }

        Date.prototype.toISOString = function () {
            return this.getUTCFullYear() + '-' + pad(this.getUTCMonth() + 1) + '-' + pad(this.getUTCDate()) + 'T' + pad(this.getUTCHours()) + ':' + pad(this.getUTCMinutes()) + ':' + pad(this.getUTCSeconds()) + '.' + String((this.getUTCMilliseconds() / 1000).toFixed(3)).slice(2, 5) + 'Z';
        };
    }());
}

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
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 (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;
    };
}

// Production steps of ECMA-262, Edition 5, 15.4.4.19
// Reference: http://es5.github.io/#x15.4.4.19
if (!Array.prototype.map) {
    Array.prototype.map = function(callback/*, thisArg*/) {
        var T, A, k;

        if (this == null) {
            throw new TypeError('this is null or not defined');
        }

        var O = Object(this);
        var len = O.length >>> 0;

        if (typeof callback !== 'function') {
            throw new TypeError(callback + ' is not a function');
        }

        if (arguments.length > 1) {
            T = arguments[1];
        }

        A = new Array(len);
        k = 0;

        while (k < len) {
            var kValue, mappedValue;

            if (k in O) {
                kValue = O[k];

                mappedValue = callback.call(T, kValue, k, O);
                A[k] = mappedValue;
            }
            k++;
        }

        return A;
    };
}

// Production steps of ECMA-262, Edition 5, 15.4.4.18
// Reference: http://es5.github.io/#x15.4.4.18
if (!Array.prototype.forEach) {
    Array.prototype.forEach = function(callback/*, thisArg*/) {
        var T, k;

        if (this == null) {
            throw new TypeError('this is null or not defined');
        }

        var O = Object(this);
        var len = O.length >>> 0;

        if (typeof callback !== 'function') {
            throw new TypeError(callback + ' is not a function');
        }

        if (arguments.length > 1) {
            T = arguments[1];
        }

        k = 0;
        while (k < len) {
            var kValue;

            if (k in O) {
                kValue = O[k];

                callback.call(T, kValue, k, O);
            }
            k++;
        }
    };
}

// Mozilla's bind() shim for IE8
if (!Function.prototype.bind) {
    Function.prototype.bind = function (oThis) {
        if (typeof this !== 'function') {
            throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
        }

        var aArgs = Array.prototype.slice.call(arguments, 1),
            fToBind = this,
            FNOP = function () {
            },
            fBound = function () {
                return fToBind.apply(this instanceof FNOP && oThis ? this : oThis,
                    aArgs.concat(Array.prototype.slice.call(arguments)));
            };

        FNOP.prototype = this.prototype;
        fBound.prototype = new FNOP();

        return fBound;
    };
}