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RegExp is stands for regular expression.Using RegExp Object we can perform some specific search in text. We use them when we want search for some specific Pattern in text. Suppose if want to search a single character from given pattern than write code like that:var pattern=new RegExp(\"[abc]\"); Find any character between the brackets.
RegExp Object has 3 methods:
Using test() we can search a specific value from the string.Return result in terms of true or false.
Using exec() we can search a specific value from the string.Return value if it found the value otherwise it returns null if does not find the searched value.
Using compile() we can change the RegExp.
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