JavaScript to judge whether Div content is empty _javascript tips

Source: Internet
Author: User

1, the problem background

Judge whether the div inside is empty, if it is empty, give countless hints; otherwise, show the normal page

2, the implementation of the effect of the figure shown below:

3. Design Source

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">  

The above is a small series to introduce JavaScript to determine whether the div content is empty method, I hope to help.

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