Hash Utils

hash.js

window.Hash = {
    query: {},
    getHash: function () {
        return decodeURIComponent(window.location.hash.substring(1));
    },
    clearHash: function () {
        window.location.replace('#');
    },
    setHash: function (hash) {
        window.location.replace('#' + encodeURI(hash));
    },
    get: function (key) {
        if (this.has(key)) {
            return this.query[key];
        }
    },
    clear: function () {
        this.query = {};
        this.update();
    },
    remove: function (key) {
        delete this.query[key];
        this.update();
    },
    set: function (key, value) {
        if (value !== undefined) {
            this.query[key] = value;
            this.update();
            return value;
        }
    },
    has: function (key) {
        return this.query[key] !== undefined;
    },
    parse: function () {
        var that = this;
        this.getHash().replace(
            new RegExp('([^?=&]+)(=([^&]*))?', 'g'),
            function ($0, $1, $2, $3) {
                that.query[$1] = ($3 === undefined) ? null : $3;
            }
        );
        return this.query;
    },
    update: function () {
        this.setHash('?' + $.param(this.query));
    }
};