010 Node.js Timer

Timer functions are globals, there is no need to call require('timers').

setTimeout : Established a function to be called after a mentioned milliseconds. 

Example

setTimeout(function()
{ 
    console.log("setTimeout: 2000 millisecond completed!..");
}, 2000); 

output :

setInterval : Same function like setTimeout, but it callback repeatedly after every passing of the specified duration. 

Example

setInterval(function()
 {  
    console.log("setInterval: 2000 millisecond completed!.."); 
 }, 2000); 

output :

setImmediate : It is used to execute setImmediate.

Example 

setImmediate(function(){
    console.log("SETIMMEDIATE");
});

output :

 SETIMMEDIATE

clearTimeout : It prevents object created by setTimeout.

Example

 

var timerObj = setTimeout(function(str1, str2) {
  console.log(str1 + " " + str2);
}, 2000, "Hello.", "world");

clearTimeout(timerObj);

output :

clearImmediate: Method can be used to cancel the execution of the callback and created by setImmediate

Example

 

var myObj = setImmediate(function(str1, str2) {
  console.log(str1 + " " + str2);
},  "Hello.", "world");

clearTimeout(myObj);
 

output :

Hello. world 

 

clearInterval : It is used to stop an intervalObject, as created by setInterval.

Example

var myTimerInterval = setInterval(function(str1, str2) {
  console.log(str1 + " " + str2);
}, 1000, "Hello.", "World");

clearInterval(myTimerInterval);

output :