This simple JS can't set the value of "para". I guess getElementByName doesn't work. But why?
<script>
function fn()
{
document.getElementById("para").setAttribute("name","hi");
document.getElementByName("hi").setAttribute("value","my value is high");
}
</script>
HTML:
<input type="button" onClick="fn()" value="click me">
<input id="para" type="text" />
![Chrome extension - detect if button on the webpage is clicked [duplicate]](https://file.115kc.com/storage/eg/image213.jpg)
0 Answer
getElementsByName exists, which returns a collection of the elements. If you plan to find only one:
document.getElementsByName("hi")[0].setAttribute("value", "my value is high");
Edit: a, HTML there (didn't see that before the edit). No 'hi' element in HTML, possibly in some XML format there is...
Also, i find that document type must be declared to make getelementsbyname work.
这家伙很懒，什么都没留下...
