script creation

js-utils.js

@@ -0,0 +1,119 @@
+var utility = (function() {
+
+	/**
+	 * @memberOf utility This method checks for a valid number
+	 * 
+	 * @param {?number|?string}
+	 *            number the input number to check
+	 * 
+	 * @return {boolean} true if is valid, false otherwise
+	 */
+	var isNumber = function(number) {
+		return (number != null && number !== '' && !isNaN(Number(number)));
+	};
+
+	/**
+	 * @memberOf utility This method checks for a valid string. Valid means that
+	 *           it's a string and has a length greater than 0.
+	 * 
+	 * @param {?string}
+	 *            string the input string to check
+	 * 
+	 * @return {boolean} true if is valid, false otherwise
+	 */
+	var isNotEmpty = function(string) {
+		return (string != null && typeof string === 'string' && string.length > 0);
+	};
+
+	/**
+	 * @memberOf utility This method checks a string to see if it's null or has
+	 *           no length
+	 * 
+	 * @param {?string}
+	 *            string the input string to check
+	 * 
+	 * @return {boolean} true if is empty, false otherwise
+	 */
+	var isEmpty = function(string) {
+		return (string == null || (typeof string === 'string' && string.length === 0));
+	};
+
+	/**
+	 * @memberOf utility This method checks a value to see if it is of type
+	 *           string and not null, regardless of length.
+	 * 
+	 * @param {?}
+	 *            value the input data to check
+	 * 
+	 * @return {boolean} true if string, false otherwise
+	 */
+	var isString = function(value) {
+		return (value != null && typeof value === 'string');
+	};
+
+	/**
+	 * @memberOf utility This method checks for a valid object. Valid means that
+	 *           it is not null and is an object
+	 * 
+	 * @param {Object}
+	 *            object Object the input object to check
+	 * 
+	 * @return {boolean} true if is valid, false otherwise
+	 */
+	var isObject = function(object) {
+		return (object != null && typeof object === 'object');
+	};
+
+	/**
+	 * @memberOf utility This method checks for a function. Valid means that it
+	 *           is not null and is a function
+	 * 
+	 * @param {(function(...[?]):
+	 *            ?|null)} func Function the input function to check
+	 * 
+	 * @return {boolean} true if is valid, false otherwise
+	 */
+	var isFunction = function(func) {
+		return (func != null && typeof func === 'function');
+	};
+
+	/**
+	 * @memberOf utility This method checks for a boolean. Valid means that it
+	 *           is a boolean
+	 * 
+	 * @param {?boolean}
+	 *            bool Boolean the input boolean to check
+	 * 
+	 * @return {boolean} true if is valid, false otherwise
+	 */
+	var isBoolean = function(bool) {
+		return (bool != null && typeof bool === 'boolean');
+	};
+
+	/**
+	 * @memberOf utility This method checks for a selector. Valid means that the
+	 *           selector is not null and has a length (jQuery selector objects
+	 *           have a length)
+	 * 
+	 * @param {Object}
+	 *            selector Object the selector input to check
+	 * 
+	 * @return {boolean} true if is valid, false otherwise
+	 */
+	var isSelector = function(selector) {
+		return (isObject(selector) && selector.length > 0 && typeof selector.is === 'function');
+	};
+
+	var object = {
+		isNumber : isNumber,
+		isEmpty : isEmpty,
+		isNotEmpty : isNotEmpty,
+		isString : isString,
+		isObject : isObject,
+		isFunction : isFunction,
+		isBoolean : isBoolean,
+		isSelector : isSelector
+	};
+
+	return object;
+})();