Passing value from text input into javascript function
Question
Inside my html file I call a javascript function that takes two parameters, where the second parameter is the name of a file that should be saved.
<a id="record_button" onclick="Recorder.record('audio', 'test.wav');" href="javascript:void(0);" title="Record"><img src="images/record.png" width="24" height="24" alt="Record"/></a>
I would like to make a dynamic variable that takes the value from a textfield and forward that as the second parameter (instead of test.wav), so the user can determine the name of the file.
<label for="filename">Filename</label>
<input name="filename" type="text">
Thanks.
3 answers
solution1
11 ACCPTED 2011-10-31 17:11:31
This is easier if you give your user input an id attribute:
<input name="filename" id="filename" type="text">
Now you can access the value in Javascript with:
document.getElementById('filename').value
Note that, if you aren't controlling the Recorder.record() method, you'll need to validate the user input first (at a minimum, to verify that they've entered something). I'd recommend moving this to a separate function, eg:
function recordToFilename() {
var input = document.getElementById('filename'),
fileName = input.value;
if (fileName) {
Recorder.record('audio', fileName);
} else {
alert('Please enter a filename!');
input.focus();
}
}
Then just use that function:
<a id="record_button" onclick="recordToFilename();" href="javascript:void(0);" title="Record"><img src="images/record.png" width="24" height="24" alt="Record"/></a>
Working example: http://jsfiddle.net/nrabinowitz/GFpRy/
solution2
2 2011-10-31 17:13:35
Recorder.record('audio', document.yourformname.filename.value)
Make sure to have a name="?" attribute for your form for this to work and replace yourformname with what you put as the form's name. filename refers to the input's name attribute as well.
solution3
1 2018-01-18 09:23:16
<html>
<head>
<script>
function addData (fn, ln, em) {
console.log(fn);
console.log(ln);
console.log(em);
}
</script>
</head>
<body>
<input Type="text" name="FirstName" id="fn">
<input Type="text" name="LastName" id="ln">
<input Type="email" name="Email" id="em">
<button onClick="addData(fn.value,ln.value,em.value)">click</button>
</body>
</html>
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