Jquery get focus and lose focus Event code _ jquery

When the mouse clicks in the search box, the text in the box disappears, and the focus and focus loss events in the search box are often used. Next, we will introduce the specific code, for more information about the amount of friends you are interested in, see The input loses focus and obtains focus.
The text in the search box disappears.
When we are doing a website, we often use the search box to get the focus and to lose the focus. because of laziness, every time we write it, it's annoying, in a similar situation, just call it.

Related js Code:

The Code is as follows:

Input loses focus and jquery focus event Plugin-Lazy website construction