Event.stopPropagation()
 The stopPropagation() method of the Event interface prevents further propagation of the current event in the capturing and bubbling phases. It does not, however, prevent any default behaviors from occurring; for instance, clicks on links are still processed. If you want to stop those behaviors, see the preventDefault() method. It also does not prevent immediate propagation to other event-handlers. If you want to stop those, see stopImmediatePropagation(). 
Syntax
event.stopPropagation();
Parameters
None.
Return value
undefined.
Examples
See Example 5: Event Propagation in the Examples chapter for a more detailed example of this method and event propagation in the DOM.
Specifications
| Specification | 
|---|
| DOM Standard (DOM) # ref-for-dom-event-stoppropagation① | 
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
| stopPropagation | 1 | 12 | 1 | 9 | 7 | 1 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 
See also
- See the DOM specification for the explanation of event flow. The DOM Level 3 Events draft has an illustration.
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    https://developer.mozilla.org/en-US/docs/Web/API/Event/stopPropagation