In practice, we will use thereturnstatement to terminate a function after it has done what we wanted it to do. That function could return a value to the caller like you saw in the previous examples, or that function could simply just exit: functiondoSomething(){letblah="Something interestin...
本人系一个惯用Vue的菜鸡,恰巧周末和大佬扯蛋,峰回路转谈到了fiber,被大佬疯狂鄙视... 大佬还和我吐槽了现在的忘了环境 百度是不可信的,百度到的东西出来...
{_connectionListener: [Function: connectionListener],METHODS: ['ACL','BIND','CHECKOUT','CONNECT','COPY','DELETE','GET','HEAD','LINK','LOCK','M-SEARCH','MERGE','MKACTIVITY','MKCALENDAR','MKCOL','MOVE','NOTIFY','OPTIONS','PATCH','POST','PROPFIND','PROPPATCH','PURGE','PUT','REBI...
Catch style issues & programmer errors early.Save precious code review time by eliminating back-and-forth between reviewer & contributor. Adoptingstandardstyle means ranking the importance of code clarity and community conventions higher than personal style. This might not make sense for 100% of proje...
Use Code-Quality ToolsAn often-overlooked resource, freeware code-quality tools are available to all JavaScript developers on the Web. These tools inspect your code for lots of common issues, including memory leaks, and can be your best bet for catching issues early. Two useful...
process.exit(0) 0表示正常退出,当然,我们可以传入不同的退出码,表示不同的含义。 正常情况下,如果没有异步操作正在等待,那么 Node.js 会以状态码 0 退出,其他情况下,会用如下的状态码: 1 未捕获异常 – 一个未被捕获的异常, 并且没被 domain 或‘uncaughtException’ 事件处理器处理。 2– 未被使用 (Bas...
due to the nested nature of callbacks, code can end up getting messy if you have a lot of consecutive asynchronous requests that rely on each other. This was a big frustration for JavaScript developers early on, and as a result code containing nested callbacks is often...
✅ Do: Often production bugs are revealed under some very specific and surprising input — the more realistic the test input is, the greater the chances are to catch bugs early. Use dedicated libraries like Chance or Faker to generate pseudo-real data that resembles the variety and form...
Preloadingkey scripts so that the browser has early awareness of potential blocking scripts. Reducing unused JavaScript code(e.g., through code-splitting, etc.) to speed up script loading and execution. Caching your JavaScript codewith the PRPL (Preload, Render, Pre-cache, and Lazy-load) patter...
This time, I will mainly talk about the current front-end things front-end infrastructure and front-end new direction