Web Reference: Description The includes() method returns true if a string contains a specified string. Otherwise it returns false. The includes() method is case sensitive. Jul 10, 2025 · The includes() method of String values performs a case-sensitive search to determine whether a given string may be found within this string, returning true or false as appropriate. Nov 24, 2009 · Usually I would expect a String.contains () method, but there doesn't seem to be one. What is a reasonable way to check for this?
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