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tryjs_includes
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<!DOCTYPE html> <html> <body> <h1>JavaScript Strings</h1> <h2>The includes() Method</h2> <p>Check if a string includes "world":</p> <p id="demo"></p> <script> let text = "Hello world, welcome to the universe."; document.getElementById("demo").innerHTML = text.includes("world"); </script> </body> </html>