javascript:使用replace()替换html中的文本

Question

我正在尝试使用replace()函数来调整上面的代码以显示文本:这就是全部吗？!同时保留添加在innerHTML中的文本

 <p id="str">Click the button for a surprise.</p>
 <form action="#">
 <input type="submit" onclick="myFunction()" value="Enter">
 </form>

 function myFunction(){
 document.getElementById('str').innerHTML = "Is this all there is?";
 str.replace(str, "Is this all?!")
 }

Answer 1

你可以试试这个

<p id="str">Click the button for a surprise.</p>
<form action="#">
<input type="submit" onclick="myFunction()" value="Enter">
</form>


function myFunction(){
var str = document.getElementById('str');
str.innerHTML = "Is this all there is? <moretext>";
str.innerHTML.replace("<moretext>", "Is this all?!");
}