event target parent

COLOR PICKER. Events within that element “bubble up,” and you can check to see if the element that triggered the event (the event.target) matches the selector you really care about. Also, $( "html" ).parent() method returns a set containing …

This property is very useful in event delegation, when events bubble. An event descriptor is a string describing the event type that the transition will match. In that case, the order of the transitions determines which transition gets chosen. As seen above, the machine.transition(...) method is a pure function that takes two arguments: It returns a new State instance, which is the result of taking all the transitions enabled by the current state and event. However, the event handler may also be invoked for a parent or ancestor element of the target.

An eventless transition is a transition that is always taken when the machine is in the state where it is defined, and when its cond guard evaluates to true. This would otherwise be an internal transition. Transitions that have { target: undefined } (or no target) are also internal transitions: External transitions will exit and reenter the state node in which the transition is defined. From its point of view, the event happened on . Hierarchical State Nodes Note the differences from this (=event.currentTarget):. The target property gets the element on which the event originally occurred, opposed to the currentTarget property, which always refers to the element whose event listener triggered the event.
This works similar to how DOM events work: if you click a button, the click event handler directly on the button is more specific than a click event handler on the window. It will be taken if and only if: In a hierarchical machine, transitions are prioritized by how deep they are in the tree; deeper transitions are more specific and thus have higher priority. A forbidden transition is made by specifying the target explicitly as undefined. In XState, a "forbidden" transition is one that specifies that no state transition should occur with the specified event. To add an event listener to an element that a template doesn’t own, call addEventListener directly.

This method is similar to .parents(), except .parent() only travels a single level up the DOM tree.
A state transition defines what the next state is, given the current state and event. The target property can be the element that registered for the event or a descendant of it. // Still in 'playing' state because no conditions of. See actions on self-transitions for more details on how entry/exit actions are executed on self-transitions. Internal transitions are created by specifying a relative target (e.g., '.left') or by explicitly setting { internal: true } on the transition. (This may happen due to event bubbling. Given a jQuery object that represents a set of DOM elements, the parent () method traverses to the immediate parent of each of these elements in the DOM tree and constructs a new jQuery object from the matching elements. An enabled transition is a transition that will be taken conditionally, based upon the current state and event. Instead of adding event listeners to specific elements, you listen to all events on a parent element (often the document or window). Also, since the transitions are internal, entry, exit or any of the actions defined on the parent state node are not executed again. Every transition above is external and will have its exit and entry actions of the parent state executed. Explaining it through example So, in JavaScript, events bubble.

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