![]() ![]() Let specialCharacters = string.match(regex) Ĭonsole.log(specialCharacters) // For example: let string = "Hello World!" You can also use the match method of the String object to search for a regular expression within a string, and return an array of all the matches. If the test method returns true, it means that the string contains a special character. This regular expression uses a negated character class, which will match any character that is not a letter or a digit. If (targetString.toLowerCase().includes(searchString.toLowerCase())) : Matches the preceding character at least n times, but no more than m timesįor example, the following code uses a regular expression to search for any special characters within a string: let string = "Hello World!" Ĭonsole.log("The string contains a special character.") To perform a case-insensitive string search in JavaScript, you can use the toLowerCase method on both the search string and the target string. As a result, it is a common operation in programming. The ability to search for and locate specific strings within larger bodies of text is an essential part of many programming tasks.
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