如何从同一外部JavaScript文件中的多个HTML获取/设置输入字段？

Question

I have two html files, A.html and B.html, and one external java script file called C.js When I run A.html, I want to read value of input filed of B.html from Java script but it's not reading value of input field. It just returns null. B.html looks like this (I am showing only form)

<form action="" name="form1" id="form1">
    <input type="text" name="text1" id="text1" value="Hello">
</form>

I have this code in Java script (C.js) which is called by A.html successfully.

function readInputText(){
    var myVal = document.getElementById("text1").value;     
    // Above line is not working. I tried document.form1.text1.value also but did not work.
}

Did I miss anything that prevented Java script code from reading the text value from A.html?

Answer 1

尝试将“ .value”更改为“ .innerHTML”