Have a textarea
tag in form, to take input text and return the value of said text.
<textarea id="code" name="code"></textarea>
Using javascript to get the value, but it returns nothing. Used typeof
to check if it's undefined
, but typeof text
gives 'string'
. Is this correct way to use .value
? How to improve this?
JavaScript:
var text = document.getElementById('code').value;
document.getElementById('submit-button').onclick = function() {
alert(text);
};
You're getting the value immediately when the page loads, before the user has had a chance to type anything. You want to get the value when the user clicks the button:
document.getElementById('submit-button').onclick = function() { var text = document.getElementById('code').value; alert(text); };
<textarea id="code" name="code"></textarea> <button type="button" id="submit-button">click me</button>
You need to bind the event and get the value just when the user clicks the button.
Embrace the function addEventListener
document.getElementById('submit-button').addEventListener('click', function() { var text = document.getElementById('code').value; console.log(text); });
<textarea id="code" name="code"></textarea> <button type="button" id="submit-button">click me</button>
Stick the var text
line inside the click event; it's getting defined when the script runs originally, so it is just an empty string.
document.getElementById('submit-button').onclick = function() {
var text = document.getElementById('code').value;
alert(text);
};
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