node js可以在同一行通过命令行arguments到twojs吗？

Question

I am new to Node.js. Recently, I am building a script as below:

"updateData": "node runFirstScript.js && node runSecondScript.js",
"build:desktop": "npm run updateData env1",
"build:mobile": "npm run updateData env2",

I am expecting runFirstScript.js and runSecondScript.js can get the parameters env1 and env2 while they are executed.

Instead of separating as below:

"updateData1": "node runFirstScript.js",
"updateData2": "node runFirstScript.js",
"build:desktop": "npm run updateData1 env1 && npm run updateData2 env1",
"build:mobile": "npm run updateData1 env2 &&  npm run updateData2 env2",

Is there any optimum solution for this? Thanks

Answer 1

Just change && to & ,here is the reason what each symbol mean:

• & is to make the command run in background. You can execute more than one command in the background, in a single go. For eg: Command1 & Command2 & Command3

• && is to make following commands run only if preceding command succeeds.For eg: Lets say we have Command1 && Command2 && Command3 . Command2 will only execute if Command1 succeed.

• Bonus: ; which is useful in your daily productivity , You can run several commands in a single go and the execution of command occurs sequentially. For eg: Command1; Command2; Command3 Command1; Command2; Command3