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This article mainly shows you "what are the focus events in js", the content is simple and clear, and I hope it can help you solve your doubts. Let the editor lead you to study and learn this article "what are the focus events in js".

1. Blur triggers when an element loses focus.

Events do not bubble and are supported by all browsers.

2. Focus triggers when the element gets focus.

Events do not bubble and are supported by all browsers.

3. Focusin is equal to focus event, but it bubbles.

4. Focusout is the general version of the HTML event blur.

Example

/ / focus event: the placeholder function of the analog input box var oInput1 = document.getElementById ("input1"); oInput1.onfocus = function () {oInput1.value = ";}; oInput1.onblur = function () {oInput1.value =" Please enter content ";}; / / oInput1.select (); these are all the contents of the article" what are the focus events in js "? thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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