html event attribute onblur triggered when an element loses focus

Example

Validate the input field when the user leaves it:

Browser support

IE

Firefox

Chrome

Safari

Opera

All major browsers support onblurattribute.

Definition and Usage

The onblur attribute is triggered when the element loses focus.

onblur is often used inform validationcode (such as the user leaving a form field).

Tip: The onblur attribute is the opposite of theonfocusattribute.

Differences between HTML 4.01 and HTML5

None.

Syntax

Attribute value

Example:

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