


Share several practical Node.js debugging methods, come and collect them! !
This article will introduce to you several methods of Nodejs debugging. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.
Related recommendations: "nodejs tutorial"
The first one
1. Open the vscode
built-in terminal and select JavaScript Debug Terminal
in the upper right corner. 2. In the code Break point (you need to enter debugger
or mark Breakpoint
at the breakpoint)
3. Run the execution command on the terminal
The second type
1. Mac select Debug: Toggle Auto Attach
through the shortcut key and turn on Auto Attach
(this method requires the node version It must be greater than 12)
2. Break the point in the code (you need to enter debugger
or mark Breakpoint
at the breakpoint)
3. Execute the code through the terminal command node --inspect index.js
The third type
Sometimes I look at some When opening an open source library, if you want to view the source code through breakpoints, you can specify the runtime execution environment by configuring launch.json
For example, package.json
When debugging with scripts
vscode, configure launch.json
as follows
Among them, runtimeExecutable
specifies the execution environment of the runtime, specified here as npm
, runtimeArgs
specifies the execution parameters corresponding to the runtime execution environment, specified here Run run dev
.
After configuring, press F5 to enable debugging. The actual execution is npm run dev
, so that we can view the execution process of the code at the source code break point
For more debugging skills, you can check the vscode official website, Address
Fourth type
ndb is an improved debugging experience for Node.js, enabled by Chrome DevTools
With the help ofndb, just as it is described on the official website,ndb
Improved the debugging experience of nodejs
by enabling a Chrome Devtools for debugging.
Before using it, you need to install it. You can pass npm install -g ndb
. After installation, enter debugger
where a breakpoint is required in the code. Then run ndb index.js
, and you will find that a Chrome Devtools is opened and a breakpoint is already in place
nodejs debugging is of course not limited to these types. Teacher Ruan has also written an article about nodejs debugger before. If you are interested, you can click to view Address
For more programming-related knowledge, please visit:Introduction to Programming ! !
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