Prototype Questions

Okay, i've seen but haven't programmed in c# before. you can assume i'm competent in c++, and advanced in c (for what good that'll do me). i

I have a simple module, it's code var router = function(pattern) { this.setroutepattern(pattern); };

I have an iframe with a class name="blaclass". inside it, i have one div with no name (or id) and inside this id there is a div with class name =

Both the jquery and prototpye javascript libraries refuse to allow me to use a variable to select an list item element by index number although

A very niche problem: i sometimes (30% of the time) get an 'undefined handler' javascript error on line 3877 of the prototype.js library

I am a student studying programming. i have a question. function a () { } a.prototype.prtsomething =

I want to loop through custom react elements using .map(). an example of what i'm looping through is: <button

I came across the below code in one website and i am unable to understand the line commented as "doubt". how is the function returning the

I have api call that sets a collection of 10 objects into a state array. below is an example of that code: class example extends

Case 1 :- initially in object literal i assign __proto__ to null and then i'm trying to reassign it to animal, which is

I have redefined tostring of htmlcanvaselement.prototype.todataurl. when i am getting property descriptor of

So i have an api. i have to drill down into it, so i start by mapping over all the response data, then do another map inside of that to get an

I have an api response that returns 1 of 7 different numbers. each of those numbers represents a different word. (1 = complete, 2 = pending,

Environment: os: linux 5.3 node: 12.16.1 yarn: 1.21.1 npm: 6.13.4 watchman: 4.9.0 xcode: n/a android studio: 3.5

So i have data that i get from an api in componentdidmount, and then i map over it in the render. lets say the map returns 4 objects. how do i

The following defines, creates and finally inserts an instance of my "autonomous custom element" onto the container:

I am used to coding with objects in different languages such as java, python, … i have never used javascript objects before and i am stuck with

I was tweaking with object.create() method. when i execute following code, i expect that my object should be able to use methods in

I have declared array prototype myarraymax and the code seems right after repeated verifications from other resources on w3schools.com :

There is an array of objects const data = [{ "name": "08/20/2018", "id": "name_1" }, { "name": "12/23/2018",

For learning purpose, i wrote a piece of (meaningless) code like this:

I want to create a regexp that counts how many numbers i have within the string, but they don't have to be in order. it can be separated.

I'm having trouble extending the native websocket class using es6 classes. the following piece of code works on chrome and

I want to extend an element by a method, but i've heard it is a bad idea. therefore i'm wondering if it is possible to make a class so that its

Good day, i'm coding with phaser 3 and javascript then tried doing classes like so:

I need to get some value from some forms so when i need to call the specific value from a form i want to call for the particular key in an array.

I follow a tutorial to using prototype to define methods of object. however, i still can't passing the property by using either this or

I have a functional react component with text that is displayed from a mapped array. how can i limit the character count of

I would like to map a more dimensional array that looks like this: const array = [ { name: "anna", items: ["bread",

So i have these classes that i use to handle errors in different scenerios like so: export class apierror extends error {

The prototype pattern is implemented in es5 as follows: var shape = function (id, x, y) { this.id = id; this.move(x, y); };

In a current javascript project where es6 class syntax and get/set syntax are used i stumbled upon a behaviour i cannot explain. first, an

I am trying to create a shopping cart using vanilla javascript and oojs concepts.

I keep getting x is not a function when trying to use another method on the same object. test code below: object1 :

I am pretty new to in-depth javascript. now, since i come from the world of c/c++ or java type

Consider this function: function foo(){ var a = "3"; }; according to

I checked some question with similar issues but could not cope with mine where i have a file.js: 'use strict'

So i am coming from classical oop language and trying to wrap my head around javascript prototypical style. trying to understand the

i know that “the empty list in a function declarator that is not part of a definition of that function specifies

I want a "for" or "while" loop to iterate through all the instances/objects in the prototyp/"class". like "hasnext()" in array. then i

I've a javascript object, when i log object in console, in object properties i've 2 type marked with arrow in picture. what's different

since an argument of a function call is an expression, type conversions also take place when arguments are passed to function. in

I am trying to make a div, that when you click it turns into an input box, and focuses it. i am using prototype to achieve this. this works in

Char *strinv(const char *s); //that's the given prototype i'm a bit insecure about the *strinv part. does it mean that

I'm a newbie at js and in one of my tests i've been trying to figure out how the following code works in terms of property inheritance.

Whenever i print the c1 object, it prints: <main.car object at 0x7fde8b29a240> however i added the

I have my model.js like this : export class piece { constructor(name, coordinate) { this.name = name; this.coordinate =

Consider: const compose = <s, t, r>(func1: (inp2: t) => r, func2: (inp: s) => t): (inp: s) => r => ((arg: s)

I am looking for a way to modify an object that was defined by a literal without passing it into another function. example:

I got some nested arrays. something like this: [array(2), array(2), ...]

Recently i learned about js iterators, beeing used in a for( of ) loops. since in js even primitives have a prototype, i wondered if

I was hoping you could help me out. i'm trying to plugin a simple tfl tube api into my web page, using axios/reactjs. the integration

Can we simply assign a value rather than using object.create? rectangle.prototype = shape.prototype; rectangle.prototype =

Hello i've learned that inheritance happens with prototypes. what i don't understand is, let's say: we create a simple array const

What is the preferred way of defining common fields for all instances of a class in javascript? via prototype or constructor?

In this prototypal inheritance example, if we skip to reassign the constructor then how can we use a keyword 'new' on it? according to

I started learning javascript and have below question:

I have a web page where i show two models, each one in a canvas using threejs. i would like to read a local file, parse it and then make

I am trying to simulate controller inheritance in angularjs (1.6.9), but i am getting an error on console as :

I have multiple instances of chosen selector being used in a page. totally 5 instances as you can see in the code(fiddle link

I was hoping that with the signatures feature in perl 5 (e.g. in version 5.34.0), something like this would be possible: use

Here object.create() is used for inheritance. the javascript code:

I'm prototyping in framer.js. i have a scroll component and scroll content, i'm trying to print the current x or scrollx position of the content.

What web browsers use the __proto__?

I am using momentjs for date calculations. here i want to change start of year for weeks calculation. for me start of year will

I'm trying to override some data via prototope js before submitting the form. how can i achieve it? here's the snippet:

I instantiate a function from my template with new product.image({ "title": document.queryselector('#image-title') });

Hopefully this question won't be flagged as too subjective but i'm newish to oop and struggling a bit when it come to sharing data

Now before i get flagged for a duplicate question, please hear me out. i know this question has been asked many times before, such as in

Given the standard way of achieving inheritance like this function baseclass() { } function subclass() {

Question: how do i write a custom array.prototype.find() and not add it to the array.prototype? i would like to

I have an object of functions and i like to prototype another function to all of these properties. example: var test = function(num) { return

I've found that the native js sort function screws up from time to time so i wanted to implement my own. lets say i have the following :

I'm building custom libraries to handle gui and creating divs and stuff programatically. i also want to extend these objects with children and methods to do something like