first of all, let s talk about the meaning of adaptive compression on my side: the src stores the bitmap in the img tag, the data-ori stores the address of the original image, and the page onload loads the big image according to the network status (src...
how do you understand that using refs can reduce the consumption of dom nodes? If you see an example on the official website of Vue, you will use ref,refs. . is the understanding and illustration of the following example correct? <!DOCTYPE html>...
uses the Dialog dialog box of element-ui. There is a Tree tree control in the dialog box that can select the tree node. When I first opened the Dialog and initialized the node of the Tree tree control, I reported an error, Cannot read property setCheck...
The textbook says: alert (opener.name) can get the name of the parent window. cat father.html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>< title> < head>...
recently, I have been looking at the lock mechanism related to Mysql. There are a few questions that have not been understood. I would like to ask you, 1, Mysql intentional lock and specific exclusive lock shared lock. Is the purpose of intentional lo...
I would like to ask why my picture is named 000001.jpg 000002.jpg. Why would I report this error after training?...
for example: both software can be divided into client and server. Is it impossible to install only the server when deploying the server? Why do I have to install a client? ...