Created
March 4, 2019 21:00
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javascript event order for an onclick
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| <html> | |
| <body> | |
| <div id="elem1"> | |
| <div id="elem2"> | |
| Hi | |
| </div> | |
| </div> | |
| <script> | |
| count = 0; | |
| ha = function(obj){ | |
| var handling = ""; | |
| count += 1; | |
| // event property obj.bubbles will check if the event type is one that bubbles or not. | |
| // var canThisBubble = obj.bubbles; | |
| switch(obj.eventPhase) { | |
| case 1: handling = "bubbling"; break; | |
| case 2: handling = "target"; break; | |
| case 3: handling = "capturing"; break; | |
| } | |
| console.log(`The event received by ${obj.target.id} has been passed to ${this.id}. The handler was run the ${count}th time. This handler is in the ${handling} phase.`); | |
| } | |
| elem1 = document.getElementById('elem1'); | |
| elem2 = document.getElementById('elem2'); | |
| elem1.addEventListener('click', ha, true); // bubbling | |
| elem2.addEventListener('click', ha, true); // target element | |
| elem2.addEventListener('click', ha, false); // target element | |
| elem1.addEventListener('click', ha, false); // capture | |
| </script> | |
| </body> | |
| </html> |
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