For example you have the following code;
function reverse(str) { let reversed = ""; for (let char of str) { reversed = char + reversed; } return reversed; } module.exports = reverse;
If you want to debug is in Node, you can do:
function reverse(str) { let reversed = ""; for (let char of str) { debugger; // add debugger reversed = char + reversed; } return reversed; } reverse("awefw"); // call the function module.exports = reverse;
Then in cmd, run:
node inspect index.js
Then just type ‘continue‘ or just ‘c‘.
It will pause on liine of ‘debugger;‘ Now for example you want to see, what is the variable ‘str‘:
you can type: ‘repl‘:
Then after you enter ‘str‘, you will see the output.
原文：https://www.cnblogs.com/Answer1215/p/10903372.html