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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>Click the button to check if every element in the array has a value above this number:</p> <p><input type="number" id="ageToCheck" value="18"></p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> const ages = [32, 33, 12, 40]; function checkAge(age) { return age > document.getElementById("ageToCheck").value; } function myFunction() { document.getElementById("demo").innerHTML = ages.every(checkAge); } </script> </body> </html>
