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<!DOCTYPE html> <html> <body> <h1>JavaScript Arrays</h1> <h2>The every() Method</h2> <p>every() returns true if all elements in an array pass a test (provided as a function).</p> <p id="demo"></p> <script> const ages = [32, 33, 16, 40]; document.getElementById("demo").innerHTML = ages.every(checkAge); function checkAge(age) { return age > 18; } </script> </body> </html>
