Nodejs Errors

In Nodejs we have 4 different types of errors.

1. Standard Javascript error like reference , syntax, type etc
2. User defined error
3. Assertion error
4. System error

Create a file “node-error.js” with below code. Please note “,” is missing in console.log

var a=10;
b=10;
var c= a + b;
console.log("Total - " a)

Below screenshot shows example for syntax error.

We can handle the errors using try-catch or utilizing the callback function of node js. Will see how a callback works in later section.