Different Type console output in [Node.Js]

console.log([data], [...])
console.info([data], [...])
console.error([data], [...])
console.warn([data], [...])
console.dir(obj)
console.time(label)
console.timeEnd(label)
console.trace(label)
console.assert(expression, [message])

Usage of console.log([data], [...]),console.info([data], [...]),console.error([data], [...]),console.warn([data], [...])

 Print the output in a newline .
This function can take multiple arguments like a printf() in C or System.out.println() in Java



Example Consloe.js:

 var data=[{"name":"Kotini","LastName":"Tirumula"},{"name":"Kotini","LastName":"Srinu"}];  
 console.dir(data);  

Out Put:

 D:\nodejs>node Console.js
 This is console log output
 This is output of,console log

Usage of console.dir(obj):

Example ConsloeDir.js:

 var data=[{"name":"Kotini","LastName":"Tirumula"},{"name":"Kotini","LastName":"Srinu"}];
console.dir(data);

Out Put:

D:\nodejs>node ConsoleDir.js

[ { name: 'Kotini', LastName: 'Tirumula' },
  { name: 'Kotini', LastName: 'Srinu' } ]
D:\nodejs>

Usage of console.time(label) and console.timeEnd(label)
console.time(label):
 Mark or start record a time.
console.timeEnd(label):
 Finish timer, record output. 

Example ConsloeTime.js:

 console.time('10-elements');  
  for (var i = 0; i< 10; i++)   
 {   
   console.log("Itr "+i);   
 }   
 console.timeEnd('10-elements');  

Out Put:
D:\nodejs>node ConsloeTime.js 
Itr 0 
Itr 1 
Itr 2 
Itr 3 
Itr 4 
Itr 5 
Itr 6 
Itr 7 
Itr 8 
Itr 9 
10-elements: 2ms 
D:\nodejs>

Usage of console.trace(label)
  Print a stack trace as a stderr at the current position.And break the execution.
Its kind of throwing exception. 

Example ConsloeTrace.js:

 console.log('1st Line');  
 console.log('2nd Line');  
 console.trace('trace Here');  
 console.log('4th st Line');  

Out Put:

D:\nodejs>node ConsloeTrace.js
1st Line
2nd Line

D:\nodejs\ConsloeTrace.js:3
console.tace('trace Here');        ^

TypeError: Object # has no method 'tace'

    at Object. (D:\nodejs\ConsloeTrace.js:3:9)

    at Module._compile (module.js:456:26)

    at Object.Module._extensions..js (module.js:474:10)

    at Module.load (module.js:356:32)

    at Function.Module._load (module.js:312:12)

    at Function.Module.runMain (module.js:497:10)

    at startup (node.js:119:16)

    at node.js:901:3

D:\nodejs>