Be a good developer, add a type to your HTML button.
Why is a type attribute important on your HTML <button> element?
Without specifying a type your awesome button defaults to type="submit", which as the attribute suggest causes a submit event if the button is inside a <form> element… I’m looking at you .net developed sites.
Whats the solution then… well you have 3 options to choose from for the type="” attribute:
submitif you need to submit a formresetif you need to reset a formbuttonif you need a generic no-frills clickable button that does nothing else (until you assign it something via JavaScript)
99.999999999% of the time I’m going to say you will be using type="button", especially if your an amazing frontend developer who cares if they need to use a button or a link in their frontend code.
As simple as this seems, on a `lot of the projects I have worked on each and everyone has had a bug raised at some point which ends up being related to a non-specified type attribute.
This also means you don't have to worry about return false; for onclick events or event.preventDefault();