input type button
The <input type="button"> defines a clickable button (mostly used with a JavaScript to activate a script).
Syntax
<input type="button">
A push button that activates a JavaScript when it is clicked:
<input type="button" value="Click me" onclick="msg()">
And there is also different kind of buttons are there
<input type="submit">
<input type="reset">
These buttons are mostly used in form processing concept.
where submit button is use to submit the form data and reset button is for to blank out the form fields.
