Javascript - How To Dynamically Change Information Displayed By Radio Button?
(Duplicate?) I've tried several Stackoverflow postings related to this, but I cannot get a javaScript example to work. I'd like to avoid having to use jQuery, for the time being. I
Solution 1:
I Have made some modifications for getting label through document.getElementByTagName() and also some changes to OnSubmitForm() function. And just pasted your code with those changes below and demo link at the end.
<html><formname="myform"onsubmit="OnSubmitForm();"><inputtype="radio"id = 'first'name="operation"value="1"checked><labelfor="alsoFirst"> Answer 1 </label><inputtype="radio"id = 'second'name="operation"value="2"><labelfor="alsoSecond">Answer 2</label><p><inputtype="submit"name="submit"value="save"></p></form><scripttype="text/javascript">document.addEventListener('readystatechange', function() {
// Seems like a GOOD PRACTICE - keeps me from getting type error I was getting// http://stackoverflow.com/questions/14207922/javascript-error-null-is-not-an-objectif (document.readyState === "complete") {
init();
}
});
functioninit() {
console.log ("expect to change -Answer 1- displayed by first button to word junk");
// this worksvar label = document.getElementsByTagName('label') [0];
// this does not work
label.innerHTML = 'junk';
}
//http://www.javascript-coder.com/html-form/html-form-action.phtmlfunctionOnSubmitForm()
{
if(document.getElementById('first').checked == true)
{
alert ( "You have selected the first answer" );
}
elseif(document.getElementById('second').checked == true)
{
alert ( "You have selected the SECOND answer" );
}
returnfalse;
}
/*
<input type="radio" name="sex" id="male" value="male">
<label for="male">Male</label>
</input>
var input = document.getElementById('male');
var label = input.getElementsByTagName('label')[0];
label.innerHTML = 'New Text';
*///http://stackoverflow.com/questions/32292962/javascript-how-to-change-radio-button-label-text</script></html>Demo : https://jsbin.com/sojojiy/27/edit?html,console,output
Hope this helps. Thanks !
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