如何在Javascript中将两个函数作为单个函数？

Question

我有这两个功能:

function myFunction() {
    var x = document.getElementById("myTextarea").value;
    document.getElementById("demo").innerHTML = x;
}

function myFunction1() {
    var x = document.getElementById("myTextarea1").value;
    document.getElementById("demo1").innerHTML = x;
}

我没有成功将它们合并为一个函数.

Answer 1

function myFunction(inputId,targetId) {
        var x = document.getElementById(inputId).value;
        document.getElementById(targetId).innerHTML = x;
}
myFunction('myTextarea','demo');
myFunction('myTextarea1','demo1');