Answers for "callback function"

1

how to make callback function javascript

function startWith(message, callback){
	console.log("Clearly written messages is: " + message);
  
  	//check if the callback variable is a function..
  	if(typeof callback == "function"){
    	callback(); //execute function if function is truly a function.
    }
}
//finally execute function at the end 
startWith("This Messsage", function mySpecialCallback(){
	console.log("Message from callback function");
})
Posted by: Guest on October-05-2021
7

callback function

function greeting(name) {
  alert('Hello ' + name);
}

function processUserInput(callback) {
  var name = prompt('Please enter your name.');
  callback(name);
}

processUserInput(greeting);
Posted by: Guest on December-05-2019
5

what are callback functions

// A function which accepts another function as an argument
// (and will automatically invoke that function when it completes - note that there is no explicit call to callbackFunction)
funct printANumber(int number, funct callbackFunction) {
    printout("The number you provided is: " + number);
}

// a function which we will use in a driver function as a callback function
funct printFinishMessage() {
    printout("I have finished printing numbers.");
}

// Driver method
funct event() {
   printANumber(6, printFinishMessage);
}
Posted by: Guest on May-25-2020
2

callback function

//Callback functions - are functions that are called AFTER something happened

  const foo = (number, callbackFunction) => {
    //first 
    console.log(number)
    
    //second - runs AFTER console.log() happened
    callbackFunction()
  }
Posted by: Guest on November-15-2020
1

callback function

function createQuote(quote, callback){ 
  var myQuote = "Like I always say, " + quote;
  callback(myQuote); // 2
}

function logQuote(quote){
  console.log(quote);
}

createQuote("eat your vegetables!", logQuote); // 1

// Result in console: 
// Like I always say, eat your vegetables!
Posted by: Guest on December-04-2020
2

callback function

const ironMan = withGloves(withBoots(withArmor(withHelmet(TonyStark))));
Posted by: Guest on May-14-2020

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