What is "button"

Button is the English word for Portuguese button.

As its name suggests, it is something to be clicked on, pressed or played. Buttons are widely used in programming, in all languages.

The direct function of a bootlego is to receive an action from the user and, without that action, the button has no effect. Buttons are usually used to send data, validate something or do a certain action, such as continue, return, cancel or invoke a function.

The definition of button is very broad because its construction and application can vary from language to language, and its actions can be diverse depending on the application in which it is inserted, however the reason for a button exist is that it, when clicked, will always result in a certain action.