Web Reference: In this tutorial, you will learn how to use the JavaScript String includes () method to check if a string contains a substring. Description The includes() method returns true if a string contains a specified string. Otherwise it returns false. The includes() method is case sensitive. 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.
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Es6 Tutorial Javascript String Includes Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $51M - $76M
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Last Updated: April 5, 2026
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