The process object is a global variable that provides information about the current Node.js process and controls the current Node.js process. Because it is a global variable, there is no need to use require().
The process.argv property returns an array containing the command line arguments when starting the Node.js process.
in:
The first element of the array process.argv[0] - returns the absolute path to the executable file that started the Node.js process.
The second element process.argv[1] - is the path to the currently executed JavaScript file
The remaining elements are other command line parameters
For example:
Enter the command: node scripts/build.js "web-runtime-cjs,web-server-renderer"
Result:
console.log(process.argv[0]) // Print D:\nodeJs\node.exe
console.log(process.argv[1]) // Print E:\Study_document\vue-resource\vue-dev\scripts \build.js
console.log(process.argv[2]) // Print web-runtime-cjs,web-server-renderer
Author: whh666
Source: https://www.cnblogs.com/whh666/p/17482716.html
Copyright: This work is licensed under the " Attribution-Noncommercial-ShareAlike 4.0 International " license.
When node executes the command, pass the parameter process.argv
Terminal input:
node app.js --name=Xiaoming--age=13 test1 test2 123
The content of app.js is as follows:
method one:
console.log('process.argv', process.argv)
Print out the following content:
process.argv = [
'/usr/local/bin/node',
'/Users/xxx/Desktop/xxx/app.js',
'--name=Xiao Ming',
'--age=13 ',
'test1',
'test2',
'123'
Method 2:
process.argv.forEach((val, index) => { console.log(`${index}: ${val}`); });
Print out the following:
0: /usr/local/bin/node
1: /Users/a123456/Desktop/EDAS Reconstruction/webpack0831/script/gitac.js
2: --name=Xiao Ming3
: --age=13
4: test1
5: test2
6:123