点击运行
<!DOCTYPE html> <html> <body> <h1>JavaScript Array.filter()</h1> <p>使用通过测试的所有数组元素创建一个新数组。</p> <p id="demo"></p> <script> var numbers = [45, 4, 9, 16, 25]; var over18 = numbers.filter(myFunction); document.getElementById("demo").innerHTML = over18; function myFunction(value) { return value > 18; } </script> </body> </html>
运行结果
