Node.js Console Complete Reference

Node.js console module is a global object that provides a simple debugging console similar to JavaScript to display different levels of the message. It is provided by web browsers.

Example:

Javascript

<script>
    // Node.js program to demonstrate the
    // console.trace() method

    // Accessing console module
    const console = require('console');

    // Calling console.trace() method
    console.trace("stack teace sample");

    console.trace(
        "stack trace sample with args: %d", 39);
</script>

Output:

Trace: stack teace sample
at Object. (C:\nodejs\g\console\console_trace.js:4:9)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:829:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
Trace: stack trace sample with args: 39
at Object. (C:\nodejs\g\console\console_trace.js:5:9)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:829:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)

The complete list of NodeJS Console are listed below:

Node.js Console	Description
Node.js console.assert() Method	It checks whether the value is true or not and print an error message, if provided and failed to assert the value.
Node js console.clear() Method	The console.clear() will work differently across different operating systems and terminal types.
Node.js console.count() Method	This  is used to count label passed to it as a parameter, by maintaining an internal counter for that specific label.
Node.js console.countReset() Method	This is used to reset the count for the specific label passed to it as a parameter.
Node.js console.debug() Method	This is used to print messages to stdout in a newline. Similar to console.log() method.
Node.js console.dir() Method	This is used to get the list of object properties of a specified object.
Node.js console.error() Function	This is used to display an error messages on the console. It prints to stderr with newline.
Node.js console.info() Method	This is used to print messages to stdout in a newline. It is similar to console.log() method.
Node.js console.timeLog() Method	This is used to display the time for each execution. This function is proved to be effective when used in a loop.
Node.js console.time() Method	It is used to starts a timer that is used to compute the time taken by a piece of code or function.
Node.js console.table() Method	It is used to print the table constructed from it’s parameters into the console.
Node.js new Console() Method	This is inbuilt application programming interface of the ‘console’ module which creates a new Console with single or multiple writable streams
Node.js console.profile() Method	The console.profile() (Added in v8.0.0) method is an inbuilt application programming interface of the ‘console‘ module which doesn’t display anything unless used in the inspector.
Node.js console.profileEnd() Method	The console.profileEnd() (Added in v8.0.0) method is an inbuilt application programming interface of the ‘console’ module which does not display anything unless used in the inspector.
Node.js console.timeStamp() Method	This is an inbuilt application programming interface of the ‘console‘ module which does not display anything unless used in the inspector.
Node.js console.timeEnd() Method	This method stops a timer that was previously started by using console.time() method and display the result using stdout.
Node.js console.trace() Method	This  is used to print stack trace messages to stderr in a newline. Similar to console.error() method.
Node.js console.warn() Function	This is used to display the warning messages on the console. It prints to stderr with newline.