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Please step into my Blog for a better reading experience!Links to this article Here What is GraphQL? The official interpretation of GraphQL is a query language for the API.That may not be very understandable. For example, a traditional restFulAPI for requesting user data: This API always returns three attributes: id,name,avatar. What if we do ...

path module _u dirname: Get the absolute path directory of the current file _u filename: Get the path to the current file ctx.body = { dirName: __dirname, fileName: __filename } //{"dirName":"D:\\WEB\\koa_proj","fileName":"D:\\WEB\\koa_proj\\app.js"} path.join(p1, p2): for splicing paths //"D:\\WEB\\koa_proj\\file.txt" path.jo ...

I. Preface The application of node is composed of modules. Node follows the module specification of commonjs, which is used to isolate the scope of each module and make each module execute in its own namespace. The main contents of commonjs are as follows: Modules must export external variables or interfaces through module.exports, and import t ...

Write before Since the WeChat applet function was released, I have been following the trend of the applet, but limited to busy school, there is always not much time to learn.As a sophomore, I gradually learned Vuejs and was attracted by its concise design. Then I looked at the development documentation of the applet and found it so similar?Mayb ...

By Ylise 1. Install webpack Reference documents: 1.Chinese Document Installation Paper of webpack 2.Lodash Chinese Documents 1. Create folder mkdir webpack-demo and enter the created folder mkdir webpack-demo && cd webpack-demo 2. Initialize a new package.json file and use NPM init-y to skip the query phase. Next, use domestic mirro ...

More Front End Technologies and Knowledge Points, Search Subscription Number JS Bacteria Subscription All data is transported binary (sliced differently, HTTP2 was previously sent as a string) Requests sent may be sent out of order Efficient features such as header information compression and Server Push Channel multiplexing (only one TCP li ...

Learning excerpt from MongoDB Authoritative Guide Insert Use insert method This action document automatically generates a'_id'key >db.foo.insert({"bar" : "baz"}) Batch insert, using batchInsert function >db.foo.batchInsert([{ "_id" : 0 } , { "_id" : 1 } , { "_id" : 2 }]) The maximum message length currently acceptable to mongodb is 48MB, ...

What is session? Session is a session saved on the server side. The typical application scenario of session is that after a user logs on to a website, he puts his login information into session, and inquires the corresponding login information in each subsequent request to ensure that the user is legitimate. Classic scenes such as shopping cart ...

When we do file upload, if the file is too large, it may cause the request to time out.Therefore, when you encounter the need to upload large files, you need to upload files in pieces.At the same time, if the file is too large, how to continue the breakpoint when the network is not good?You also need to record the current upload file and make a ...

Recent simple research on SSR, SSR has a simple understanding, mainly for single-page applications, Nuxt is a good framework for SSR.There have also been some research, simple use, or very good feeling.But you still want to know if you don't depend on the framework and if you're working with SSRs, take a note. What is SSR Render the Vue compone ...