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<!DOCTYPE html> <html> <body> <h2>JavaScript Array.map()</h2> <p>Creates a new array by performing a function on each array element.</p> <p id="demo"></p> <script> var numbers1 = [45, 4, 9, 16, 25]; var numbers2 = numbers1.map(myFunction); document.getElementById("demo").innerHTML = numbers2; function myFunction(value, index, array) { return value * 2; } </script> </body> </html>
