Using Javascript to Check If a String Contains a Substring Additionally, this method can be used to check if a given string contains a specific character or set of characters. This can be used to search for keywords within a web page, or to search for specific words within a user’s input. The Javascript check string contains method is also useful for searching for specific words or phrases within a larger string. This can be very useful when validating user input, for example. This type of string manipulation can come in handy when programming a web page, as it allows you to quickly check if a given string contains other specific strings. Javascript check string contains is a method for determining if a given string contains a specific substring. What is Javascript Check String Contains? But how do you know if a particular string contains a specific substring in Javascript? Let’s explore this topic in detail and review the Javascript syntax for checking strings. Javascript is one of the most popular programming languages out there, used to create dynamic and interactive web content.
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