![]() ![]() 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. Searching for multiple values within a string.Searching for any of a set of values in a string.Checking for the presence of a number in a string. ![]()
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