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Intra answered on September 15, 2019 Popularity 10/10 Helpfulness 5/10

answer .call javascript

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.call javascript

Comment

// Call (borrow) an object's function from another object
// 'this' will bind to the borrower
// syntax: ownerObject.ownerFunction.call(borrowerObject)

const sidekick = {
  name: "Robin"
}

const hero = {
  name: "Batman",
  saveGotham: function() {
    console.log(this.name, "is keeping Gotham safe.");
  }
}
hero.saveGotham(); // Batman is keeping Gotham safe.
hero.saveGotham.call(sidekick); // Robin is keeping Gotham safe.

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript

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Contributed on May 05 2022

Intra

0 Answers Avg Quality 2/10

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call js

Comment

function Product(name, price) {
  this.name = name;
  this.price = price;

  if (price < 0)
    throw RangeError('Cannot create product "' + name + '" with a negative price');
  return this;
}

function Food(name, price) {
  Product.call(this, name, price);
  this.category = 'food';
}
Food.prototype = new Product();

function Toy(name, price) {
  Product.call(this, name, price);
  this.category = 'toy';
}
Toy.prototype = new Product();

var cheese = new Food('feta', 5);
var fun = new Toy('robot', 40);

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Sep 15 2019

Bald Eagle

0 Answers Avg Quality 2/10

javascript call()

Comment

const personOne = {
  firstName : "Elon",
  secondName : "Musk"
}

const getFullName = function(company, country) {
  console.log(this.firstName + " " + this.secondName + ", " + company + ", " + country);
}

const personTwo = {
  firstName : "Mark",
  secondName : "Zuckerburg"
}

getFullName.call(personOne, "Tesla", "United States");    // outputs Elon Musk, Tesla, United States
getFullName.call(personTwo, "Facebook", "United States");    // outputs Mark Zuckerberg, Facebook, United States

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: workat.tech

Tags: javascript j

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Contributed on May 06 2022

sani sahani

0 Answers Avg Quality 2/10

javscript call

Comment

myFunc.call(thisArg, ...args)

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: call

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Contributed on Feb 06 2021

garzj

0 Answers Avg Quality 2/10

FunctionName.call(Object/function whose values you want to use as arguments for the 'this' in a function, arg1, arg2, ...argN), if your function needs to receive arguments, pass the arguments in place of ...arg.

const car = {
  name: 'car',
  start() {
    console.log('Start the ' + this.name);
  },
  speedUp() {
    console.log('Speed up the ' + this.name);
  },
  stop() {
    console.log('Stop the ' + this.name);
  },
};

const aircraft = {
  name: 'aircraft',
  fly() {
    console.log('Fly');
  },
};

car.start.call(aircraft);
car.speedUp.call(aircraft);
aircraft.fly();

/*
	// Outputs
    	Start the aircraft
        Speed up the aircraft
        Fly
*/

// With love @kouqhar

By default, the this inside the function is set to the global object i.e. window in the web browsers and global in Nodejs.

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: www.javascripttutorial.net

Tags: call javascript javascr

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Contributed on Apr 18 2023

kouqhar

0 Answers Avg Quality 2/10

javascript call

Comment

function myFunc(p1, p2, pN)
{
     // here "this" will equal "myThis"
}
let myThis = {};

// call myFunc using myThis as context.
// pass params to function arguments.
myFunc.call(myThis, "param1", "param2", "paramN");

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: call

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Contributed on May 12 2021

TechNyquist

0 Answers Avg Quality 2/10

JavaScript Function call()

Comment

const person = {
  firstName:"John",
  lastName: "Doe",
  fullName: function () {
    return this.firstName + " " + this.lastName;
  }
}

// This will return "John Doe":
person.fullName();

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 23 2022

naly moslih

0 Answers Avg Quality 2/10

The JavaScript call() Method

Comment

		const person = {
name: "John Smith",
getNameAndAddress: function(city, country)
{
return this.name+city+country;
}

}
const personWithoutGet = {
name: "Jerry Smithers"}

 console.log(person.getNameAndAddress.call(personWithoutGet, 'Berlin','Germany'));
/*you can think of bind(), apply() and call() ALL as "stealing someone else's function to use."*/
/* victimBeingStolenFrom.functionName.call(theThief) */
/*notice the second variable personWithoutGet does not have a getName function*/

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jun 19 2022

Javasper

0 Answers Avg Quality 2/10

javascript call example

Comment

l = "abcder";
q = "Ererwrwrewrew";
console.log(String.prototype.substr.call(q, 1, 4))
/*rerw...4 refers to how many characters to substring*/

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: call

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Contributed on Aug 04 2022

Javasper

0 Answers Avg Quality 2/10

.call javascript

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