apply() js

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CodeMaster64 answered on October 9, 2020 Popularity 10/10 Helpfulness 3/10

answer apply() js

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apply() js

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The apply() method accepts arguments in an array:

var arr = [6, 89, 3, 45];
var maximus = Math.max.apply(null, arr); // returns 89

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript

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Contributed on Oct 09 2020

CodeMaster64

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apply in javascript

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let cat = { type: 'Cat', sound: 'Meow' };
let dog = { type: 'Dog', sound: 'Woof' };

const say = function (message) {
  console.log(message);
  console.log(this.type + ' says ' + this.sound);
};

say.apply(cat, ['What does a cat say?']);
say.apply(dog, ['What does a dog say?']);
Code language: JavaScript (javascript)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: www.javascripttutorial.net

Tags: apply appl

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Contributed on Dec 30 2022

Exuberant Echidna

0 Answers Avg Quality 2/10

Javascript apply()

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The apply() method is similar to the call() method except that it takes the arguments of the functions as an array instead of the individual arguments.

Syntax: functionName.apply(Object to borrow values from, [...argsN])

const person = {
  firstName: "John",
  lastName: "Doe"
}

function greet(greeting, message) {
    return `${greeting} ${this.firstName} ${this.lastName}. ${message}`;
}

let result = greet.apply(person, ["Hello", "How are you?"])
console.log(result) // logs "Hello John Doe. How are you?"

// With love @kouqhar

The apply() method allows an object to borrow the method of another object without duplicating the code.

If you use the call() method, you need to pass the arguments of the greet() function separately as follows;let result = greet.call(person, "Hello", "How are you?")

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: www.javascripttutorial.net

Tags: apply javascript

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Contributed on Apr 18 2023

kouqhar

0 Answers Avg Quality 2/10

The JavaScript Apply() Function

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

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

 console.log(person.getNameAndAddress.apply(personWithoutGet, ['Berlin','Germany']));
  }

/*you can think of apply() as "stealing someone else's function to use."*/
/* victimBeingStolenFrom.functionName.call(theThief,[any additional parameters as elements in an array]) */
/*notice the second variable personWithoutGet does not have a getName function*/
 /*the difference between call and apply is that call accepts additional parameters separately while apply (this A) accepts the parameters as an array*/

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: function functio

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Contributed on Jun 19 2022

Javasper

0 Answers Avg Quality 2/10

JavaScript Function apply()

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

const person1 = {
  firstName: "Mary",
  lastName: "Doe"
}

// This will return "Mary Doe":
person.fullName.apply(person1);

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 23 2022

naly moslih

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apply() js

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