The RegEx test() method in JavaScript has been utilized to examine a string for getting an equal string. ![]() In Ex.3, ‘ive2’ is not existing in the given string of ‘Informative’ so the test will give back the ‘false’.In Ex.2, MAP is existing but we have not appended the ‘i’ modifier for case sensitiveness hence it will give back a ‘false’.In Ex.1, the ‘map’ is existing in the string of ‘Informative’, hence it will give back a ‘true’.We conclude that the ‘/map/i’ is a regular expression, ‘map’ is a pattern that can be utilized in the search, and ‘i’ is the modifier that authorizes the search to be case sensitive. ![]() the test then it will give back the Boolean value in the output. In the above three examples, we have used the test method to find out if there are equal. The regular expression has been described to carry out significant pattern matching and it can search and replace functions on next.Įx.1: console.log ("Equal String: ",/map/i.test('Informative')):Įx.2: console.log ("Case Sensitive: ",/MAP/.test(' Informative')):Įx.3: console.log ("Non-equal String: ",/ive2/.test(' Informative')) The regex.test() method has been utilized to equate the string in which the method can give back true or false. The string is the parameter that is required that we need to pass as a string for searching for an equal string, and the return type of it is a Boolean in the form of true or false. If it is found equal then it will give the ‘true’, if it is not found equal then it will give back the ‘false’. The test() method of JavaScript carries out a search to find the equal between the regular expression and the defined string. The test() method has been used whenever we desire to know whether a pattern is established in the string.It can perform a search operation to find an equivalent between the regular expression and the given string which can give output in true or false.The RegEx is standing for the Regular Expression which is very significant in finding the text string, especially while filtering the text files. And it can be utilized to look for the equivalent string in the middle of the actual string and the regular expression which can give back result in the form of true if it finds an equal or false if it does not finds an equal. In here we are searching for a particular word in the given string.JavaScript RegEx test method is a method that gives back an array having all equal groups in which it can receive a string that we have to test as opposed to the regular expression. This is the syntax of the exec() method of regular expressions in JavaScript − regularExpressionObj.exec(string)įollowing is an example of the exec() method in JavaScript. This string is which is to be checked for match in the given string. In other words, The exec() method takes a string as the parameter. ![]() If the match of the string is present in the given string it returns an array and if the match is not found in the given string, then it returns a null value. The exec() method makes a search for the specified match of the string in the given string. Regular expressions are treated as objects in JavaScript and are denoted by either "regex" or "RegExp." The exec() method Regular expressions are patterns that are used to search for character combinations in a string. In addition to these two JavaScript includes a number of built-in methods for manipulating and processing text using regular expressions. ![]() The () and () methods are the methods in JavaScript used to handle regular expressions.
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