Javascript Class Methods

SAMER SAEID answered on December 8, 2021 Popularity 10/10 Helpfulness 4/10

answer Javascript Class Methods

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Javascript Class Methods

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// constructor function
function Person (name) {

   // assigning  parameter values to the calling object
    this.name = name;

    // defining method
    this.greet = function () {
        return ('Hello' + ' ' + this.name);
    }
}

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Tags: javascript

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Contributed on May 21 2022

SAMER SAEID

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js class syntax

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// method 1

function nested(name , age , color){
    this.name = name;
    this.details = { 
        age : age,
        color : color
    }
}

let nestedObj = new nested( "Elroi" , 22 , "blue");
 console.log(nestedObj)


// method 2
class Nested2{
    constructor(name , age , color){
        this.name = name;
        this.details = {
            age : age,
            color : color
        }
    };

    displayInfo(){
        console.log(`${this.name} ${this.details.age} ${this.details.color} `)
    } 
}

let aaa  = new Nested2("Ean" , 14 , "black");
aaa.displayInfo();

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Tags: class clas

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Contributed on Dec 16 2021

Confused Crossbill

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this in js class method

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function add(c, d) {
  return this.a + this.b + c + d;
}

var o = {a: 1, b: 3};

// The first parameter is the object to use as
// 'this', subsequent parameters are passed as
// arguments in the function call
add.call(o, 5, 7); // 16

// The first parameter is the object to use as
// 'this', the second is an array whose
// members are used as the arguments in the function call
add.apply(o, [10, 20]); // 34

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Source: developer.mozilla.org

Tags: class-method class-meth

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Contributed on Dec 08 2021

Calm Capybara

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javascript class functions

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-1

// create a function that takes in a selector to append multiple class names to element
function addClass(selector, ...classes) {
    document.querySelector(selector).classList.add(...classes);
}

// create a function that takes in a selector to remove multiple class names from element
function removeClass(selector, ...classes) {
    document.querySelector(selector).classList.remove(...classes);
}

// create a function that takes in a selector to toggle multiple class names from element
function toggleClass(selector, ...classes) {
    document.querySelector(selector).classList.toggle(...classes);
}

// create a function that takes in a selector to check if element has multiple class names
function hasClass(selector, ...classes) {
    return classes.every(className => document.querySelector(selector).classList.contains(className));
}

// create a function that takes in a selector to check if element has any class names
function hasAnyClass(selector, ...classes) {
    return classes.some(className => document.querySelector(selector).classList.contains(className));
}

Popularity 9/10 Helpfulness 1/10 Language javascript

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Tags: javascript j

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Contributed on Mar 31 2023

Jerome Scott

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Javascript Class Methods

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