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<!DOCTYPE html> <html> <body> <h2>JavaScript Array.reduce()</h2> <p>This example finds the sum of all numbers in an array:</p> <p id="demo"></p> <script> const numbers = [45, 4, 9, 16, 25]; let sum = numbers.reduce(myFunction); document.getElementById("demo").innerHTML = "The sum is " + sum; function myFunction(total, value) { return total + value; } </script> </body> </html>
