专注前端素材！
源代码：
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>素材8网教程(study.sucai8.cn)</title> </head> <body> <p>点击按钮将数组中的每个元素乘于输入框指定的值，并返回新数组。</p> <p>最小年龄: <input type="number" id="multiplyWith" value="10"></p> <button onclick="myFunction()">点我</button> <p>新数组: <span id="demo"></span></p> <script> var numbers = [65, 44, 12, 4]; function multiplyArrayElement(num) { return num * document.getElementById("multiplyWith").value; } function myFunction() { document.getElementById("demo").innerHTML = numbers.map(multiplyArrayElement); } </script> </body> </html>
运行结果