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| author | Andreas Gohr <andi@splitbrain.org> | 2007-02-19 22:06:53 +0100 |
|---|---|---|
| committer | Andreas Gohr <andi@splitbrain.org> | 2007-02-19 22:06:53 +0100 |
| commit | 05835ea215c19a3e9cc9d6793aedce6c89d27226 (patch) | |
| tree | b0f2adc5694c45ec9d4c791c166bf338df19f98e /lib/scripts | |
| parent | 86045fe98676ce35b8c0bf852eaff3439f99be75 (diff) | |
| download | rpg-05835ea215c19a3e9cc9d6793aedce6c89d27226.tar.gz rpg-05835ea215c19a3e9cc9d6793aedce6c89d27226.tar.bz2 | |
added missing files for patch by wingedfox
darcs-hash:20070219210653-7ad00-318cc9b6b0b219fc74377d8363f77f32ccf39ad7.gz
Diffstat (limited to 'lib/scripts')
| -rw-r--r-- | lib/scripts/helpers.js | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/lib/scripts/helpers.js b/lib/scripts/helpers.js new file mode 100644 index 000000000..7b500c226 --- /dev/null +++ b/lib/scripts/helpers.js @@ -0,0 +1,132 @@ +/**
+ * $Id: helpers.js 156 2006-12-23 08:48:25Z wingedfox $
+ * $HeadURL: https://svn.debugger.ru/repos/jslibs/BrowserExtensions/trunk/helpers.js $
+ *
+ * File contains differrent helper functions
+ *
+ * @author Ilya Lebedev <ilya@lebedev.net>
+ * @license LGPL
+ * @version $Rev: 156 $
+ */
+//-----------------------------------------------------------------------------
+// Variable/property checks
+//-----------------------------------------------------------------------------
+/**
+ * Checks if property is undefined
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isUndefined (prop /* :Object */) /* :Boolean */ {
+ return (typeof prop == 'undefined');
+}
+/**
+ * Checks if property is function
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isFunction (prop /* :Object */) /* :Boolean */ {
+ return (typeof prop == 'function');
+}
+/**
+ * Checks if property is string
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isString (prop /* :Object */) /* :Boolean */ {
+ return (typeof prop == 'string');
+}
+/**
+ * Checks if property is number
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isNumber (prop /* :Object */) /* :Boolean */ {
+ return (typeof prop == 'number');
+}
+/**
+ * Checks if property is the calculable number
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isNumeric (prop /* :Object */) /* :Boolean */ {
+ return isNumber(prop)&&!isNaN(prop)&&isFinite(prop);
+}
+/**
+ * Checks if property is array
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isArray (prop /* :Object */) /* :Boolean */ {
+ return (prop instanceof Array);
+}
+/**
+ * Checks if property is regexp
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isRegExp (prop /* :Object */) /* :Boolean */ {
+ return (prop instanceof RegExp);
+}
+/**
+ * Checks if property is a boolean value
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isBoolean (prop /* :Object */) /* :Boolean */ {
+ return ('boolean' == typeof prop);
+}
+/**
+ * Checks if property is a scalar value (value that could be used as the hash key)
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isScalar (prop /* :Object */) /* :Boolean */ {
+ return isNumeric(prop)||isString(prop);
+}
+/**
+ * Checks if property is empty
+ *
+ * @param {Object} prop value to check
+ * @return {Boolean} true if matched
+ * @scope public
+ */
+function isEmpty (prop /* :Object */) /* :Boolean */ {
+ if (isBoolean(prop)) return false;
+ if (isRegExp(prop) && new RegExp("").toString() == prop.toString()) return true;
+ if (isString(prop) || isNumber(prop)) return !prop;
+ if (Boolean(prop)&&false != prop) {
+ for (var i in prop) if(prop.hasOwnProperty(i)) return false
+ }
+ return true;
+}
+
+/*
+* Checks if property is derived from prototype, applies method if it is not exists
+*
+* @param string property name
+* @return bool true if prototyped
+* @access public
+*/
+if ('undefined' == typeof Object.hasOwnProperty) {
+ Object.prototype.hasOwnProperty = function (prop) {
+ return !('undefined' == typeof this[prop] || this.constructor && this.constructor.prototype[prop] && this[prop] === this.constructor.prototype[prop]);
+ }
+}
|