Javascript: When onmouseover and onmouseout are used, when you move the cursor over the child element of the element, the two events of the current element are also executed.

Source: Internet
Author: User
When JS uses onmouseover and onmouseout, when the mouse moves to the child element of the element, the two events of the current element will also be executed,
To solve this problem, add a judgment statement: If (Event. toelement)
{
If ( ! This . Contains (event. toelement ))
{
Alert ( ' OK ' );
}
}

toelement indicates the elements that move the mouse over.
here, this is the outermost element.
use this. contains (event. toelement), you can check whether the mouse moves to the element is the descendant element of the current element.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.