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Node.js Console

The Node.js console module provides a simple debugging console similar to JavaScript console mechanism provided by web browsers.

There are three console methods that are used to write any node.js stream:

  1. console.log()
  2. console.error()
  3. console.warn()

Node.js console.log()

The console.log() function is used to display simple message on console.

File: console_example1.js

Open Node.js command prompt and run the following code:

Node.js console example 1

We can also use format specifier in console.log() function.

File: console_example2.js

Open Node.js command prompt and run the following code:

Node.js console example 2

Node.js console.error()

The console.error() function is used to render error message on console.

File: console_example3.js

Open Node.js command prompt and run the following code:

Node.js console example 3

Node.js console.warn()

The console.warn() function is used to display warning message on console.

File: console_example4.js

Open Node.js command prompt and run the following code:

Node.js console example 4
Next TopicNode.js REPL




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