- Tags: Form, HTML Form Event
- Categories: HTML Events, HTML Reference, Reference
Quick Reference
The oninput event fires when the value of an HTML input or textarea element is first input or is changed.
Supported HTML tags (most input types, including the following):
textareainput type="text"input type="password"input type="search"
<!-- HTML -->
<input id="my_input" type="text" oninput="my_function()">
// JavaScript
function my_function() {
alert('The input value has changed.');
}
JavaScript
Any of the following are valid.
oninput
document.getElementById('my_input').oninput = function() {my_function()};
function my_function() {
alert('The input value has changed.');
}
input
// method 1
document.getElementById('my_input').addEventListener('input', function() {
alert('The input value has changed.');
});
// method 2
document.getElementById('my_input').addEventListener('input', my_function);
function my_function() {
alert('The input value has changed.');
}
Event
| Bubbles | yes |
| Can be canceled | no |
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HTML NOTES:
- In our HTML section the term “tag” and “element” are often used interchangeably to refer to both the tag used to create a page element and the element created by the tag (
ptag =pelement = paragraph on the page) - HTML5 is not case sensitive; so
Pis the same asp,ÂH1is the same ash1 - Global attributes can be used with all HTML tags and are therefore not mentioned on every tag page
- To write clean, readable HTML code, it is best to use indentation whereas elements within elements are indented (tabbed or spaces) to create something that looks like a project outline
- The browser will automatically remove any extra spaces and lines in your HTML code when the page is displayed
- Double quotes or single quotes can be used around HTML attribute values, but when the attribute value itself contains one form of quote, it will be necessary to use the other around the attribute
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