The exec() method executes a search for a match in a specified string.
The exec() method executes a search for a match in a specified string. Returns a result array, or null.
If you are executing a match simply to find true or false, use the RegExp.test() method or the String.search() method.
If the match succeeds, the exec method returns an array and updates properties of the regular expression object. The returned array has the matched text as the first item, and then one item for each capturing parenthesis that matched containing the text that was captured.
If the match fails, the exec method returns null.
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The value of global is a Boolean and true if the "g" flag was used; otherwise, false.
The value of global is a Boolean and true if the "g" flag was used; otherwise, false. The "g" flag indicates that the regular expression should be tested against all possible matches in a string.
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Every object descended from Object inherits the hasOwnProperty method.
Every object descended from Object inherits the hasOwnProperty method. This method can be used to determine whether an object has the specified property as a direct property of that object; unlike the in operator, this method does not check down the object's prototype chain.
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The value of ignoreCase is a Boolean and true if the "i" flag was used; otherwise, false.
The value of ignoreCase is a Boolean and true if the "i" flag was used; otherwise, false. The "i" flag indicates that case should be ignored while attempting a match in a string.
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The isPrototypeOf mehtod allows you to check whether or not an object exists within another object's prototype chain.
The isPrototypeOf mehtod allows you to check whether or not an object exists within another object's prototype chain.
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The lastIndex is a read/write integer property of regular expressions that specifies the index at which to start the next match.
The lastIndex is a read/write integer property of regular expressions that specifies the index at which to start the next match.
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The value of multiline is a Boolean and is true if the "m" flag was used; otherwise, false.
The value of multiline is a Boolean and is true if the "m" flag was used; otherwise, false. The "m" flag indicates that a multiline input string should be treated as multiple lines. For example, if "m" is used, "^" and "$" change from matching at only the start or end of the entire string to the start or end of any line within the string.
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Every object has a propertyIsEnumerable method.
Every object has a propertyIsEnumerable method. This method can determine whether the specified property in an object can be enumerated by a for...in loop, with the exception of properties inherited through the prototype chain. If the object does not have the specified property, this method returns false.
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The source property returns a String containing the text of the pattern, excluding the forward slashes.
The source property returns a String containing the text of the pattern, excluding the forward slashes. It is a read-only property of an individual regular expression instance. source does not contain any flags (like "g", "i" or "m") of the regular expression.
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The test() method executes a search for a match between a regular expression and a specified string.
The test() method executes a search for a match between a regular expression and a specified string. Returns true or false.
You can use test() whenever want to know whether a pattern is found in a string (similar to the String.search method); for more information (but slower execution) use the exec method (similar to the String.match method). As with exec (or in combination with it), test called multiple times on the same global regular expression instance will advance past the previous match.
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The RegExp constructor creates a regular expression object for matching text with a pattern.
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