Mouse event program in java script

In practice, you rarely use the dblclick event. The dblclick event fires when you double click over an element. It takes two click events to cause a dblclick event to fire. The dblclick event has four events fired in the following order:. As you can see, the click events always take place before the dblclick event. If you register both click and dblclick event handlers on the same element, you will not know exactly what user actually has clicked or double-clicked the element. The mousemove event fires repeatedly when you move the mouse cursor around an element.

Even when you move the mouse one pixel, the mousemove event still fires. It will cause the page slow, therefore, you only register mousemove event handler only when you need it and immediately remove the event handler as soon as it is no longer used, like this:. By signing up, you agree to our Terms of Use and Privacy Policy. Forgot Password? This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy.

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Rarely used nowadays. There are other ways to open a context menu, e. Events order As you can see from the list above, a user action may trigger multiple events. Try double-click too. Mouse button Click-related events always have the button property, which allows to get the exact mouse button. The possible values of event. The outdated event. As of now, event. For JS-code it means that we should check if event.

There are also mobile devices. Preventing copying. Tasks Selectable list. Create a list where elements are selectable, like in file-managers. A click on a list element selects only that element adds the class. If a click is made with Ctrl Cmd for Mac , then the selection is toggled on the element, but other elements are not modified. The demo:.