bbody/CMD-Resume

// Check if something is undefined or null
var isUndefinedOrNull = function(value) {
    return typeof value === "undefined" || value === null;
};

// Update HTML title
var updateTitle = function(name) {
    // Check if a name exists, if not make title default
    document.title = name ? name + "'s Résumé" : "Command Line Résumé";
};

// Check if a valid color
var isValidColor = function(color) {
    if (color) {
        // Disable style checking on external function
        // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
        return $.terminal.valid_color(color);
        // jscs:enable
    } else {
        return false;
    }
};

// Get key array
var getKeyArray = function(key) {
    if (Array.isArray(key)) {
        return key;
    } else {
        return [key];
    }
};

// Get value
var getDataFromArrayKey = function(data, keys) {
    keys = getKeyArray(keys);
    for (var i = 0; i < keys.length; i++) {
        var key = keys[i];

        if (typeof data[key] === "undefined") {
            return false;
        }

        data = data[key];
    }

    return data;
};

// Check if an object has key and has length
var isDefinedNotEmpty = function(object, key, isObject) {
    if (!key || !object) {
        return false;
    }

    var data = getDataFromArrayKey(object, getKeyArray(key));

    return data && (!!isObject || data.length);
};

// Checks is hosted on JSON Resume
var isJsonResumeHosted = function(url) {
    if (!url || url.length === 0) {
        return false;
    }

    // jscs:disable maximumLineLength
    var match = url.match(/((http|https):\/\/)registry.jsonresume\.org\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/gi);
    // jscs:enable maximumLineLength

    return !!match && match.length > 0;
};

// Checks if URL ends with JSON
var isJsonFormat = function(url) {
    if (!url || url.length === 0) {
        return false;
    }

    var match = url.match(/.json$/);
    return !!match && match.length > 0;
};

// Get HTML Version of URL
var getHtmlVersion = function(url) {
    return url.replace(/.json$/, ".html");
};