A and B access a set of data on the same page at the same time. A has modified one of the data. B's page has not been refreshed, so the information B sees is before A modified it. At this time, B also needs to modify this piece of data. How can I remind B that this data has been modified? I saw a way, before modifying the data...

The version of laravel 5.1 I use uses Cache to cache data, and memcached and the database are used at the same time. But now there is a question. When laravel puts the data into the cache, it will encrypt the data at the same time. Among the encryption parameters, is the mac address of the machine? For company business use...

Can the mobile web page obtain the unique identifier of the mobile phone?

The official native module only has date selection, time selection and a radio selection data. How to realize the multi-choice reform of city linkage?

I want to grab a video from a video website, but the video address is encrypted. For example: blob: http://www.imooc.com/fdf730ad-6378-499c-8d32-b8b4d01b4afc The src of the video is this address. Does anyone know how? Cracked?

My current approach is, but if I do this, the front-end js will directly report an error: {code...} {code...} I would like to know what the industry's common approach will be like? For example, I have written two pages a.vue and a-mobile.vue. How can I control the same route http://a.com to point to different page files?

A is the client's socketB is the server's socketA connect B TCP connection is equal to A B establishes a tunnel Locally initiates various requests to A, relays to B for post-processing, and returns a bunch of data Then the problem arises, distinguish this bunch of data, and reply to him Initiator, is there any good solution?

1 Mobile project webpack packaging 2 First in my project npm install rc-form --save {code...} 3 How to solve it?

1. I wrote a demo.html using requirejs. It can be displayed normally when the page is loaded for the first time. Then an error starts to appear when the page is refreshed. Although the page is still displayed normally, I don't understand why this is happening. 2. My other 999.html file (in the same directory as demo.html, but within the page...

{Code...} Both call and apply change the point of this, but the result here is different, which is weird.