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The focusin event fires when an element is about to receive focus. The main difference between this event and focus is that the latter doesn't bubble.

Note: The opposite of focusin is focusout.

General info

Interface FocusEvent
Sync / Async Sync
Bubbles Yes
Cancelable No
Targets Window, Element
Composed Yes
Default Action None

Properties

Property Type Description
target Read only EventTarget Element receiving focus.
type Read only DOMString The type of event.
bubbles Read only Boolean Whether the event normally bubbles or not.
cancelable Read only Boolean Whether the event is cancellable or not.
relatedTarget Read only EventTarget (DOM element) Element losing focus, if any.

Specifications

Specification Status Comment
UI Events Working Draft Added info that this event is composed.
Document Object Model (DOM) Level 3 Events Specification Obsolete Initial definition

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) 52 (52) (Yes) (Yes) (Yes)
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) 52.0 (52) (Yes) ? (Yes)

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最近更新: Sebastianz,