Just like "npm start,npm test,npm stop,npm restart", as noted by @AKX. These commands are directly recognized by npm, that's why we don't need to use the npm run prefix. However, for other commands like build , we need to use npm run build , because build is not directly recognized by npm and is considered a user-defined script.

2021年1月31日 · Run npm install http-server --save-dev to have http-server as development dependency, which is able to serve the index.html file. In package.json add to the scripts the start npm script for starting of the http-server: "scripts": {"start": "http-server"}. Run npm start from the command line, the server will be started by default on http ...

2012年7月30日 · In summary, running npm start could do one of two things: npm start {command_name}: Run an arbitrary command (i.e. if such command is specified in the start property of package.json's scripts object) npm start: Else if no start property exists (or no command_name is passed): Run node server.js, (which may not be appropriate, for example …

2018年11月7日 · npm start is the same as npm run start, so the question is what is the difference between dev and start options? Firstly, dev and start are the properties of a package's "scripts" object in the package.json file (in the root of the project) Secondly, in general, the command which will be executed depends on the value which is set to the dev or ...

2017年2月18日 · npm - The main scripts such as start, stop, restart, install, version or test do not require run command. These scripts and some other are described in npm documentation. npm start The others need run command before the script name as was pointed by David. npm run start:dev Yarn - You can also use yarn and in that case you do not have to ...

2020年6月27日 · An npm script is just a shortcut to run a series of node commands on your project. Any npm script, meaning any node.js commands listed under a package.json file's "scripts" section, are executed through node.js when you call them. So npm start runs the node script that is listed under start in the package.json.

2016年10月19日 · I tried to use npm start to start my application. So I added the following line in my package.json file: "scripts": { "start": "node app.js" } however, when I used npm start, I met with t...

2014年9月23日 · Actually whenever you run npm start, it runs a package's "start" script, if one was provided. If no version is specified, then it starts the "active" version. So, npm looks into your package.json file which should be having something like "start": "webpack-dev-server --hot" then it will do that. If npm can't find your start script, it defaults to:

2016年7月7日 · If you want auto run npm start command after you change the code, there are some modules could solve your problem. like node-dev or superviosr etc.., and second question, if you don't want to display the port in production environment, you can use nginx to do reverse proxy, but if in developments, I don't think it's necessary.

2016年1月17日 · It is feasible with npm whithout having to alter your scripts section in package.json. The trick here is to pass the --inspect-brk=9229 to node. The command will look like npm run start -- --inspect-brk=9229. Here's the .vscode/launch.json: