Tips for creating a substitute for a standard prototype in JavaScript

Having trouble with a JavaScript interpreter that has a buggy Array.prototype.sort. I want to replace it, at least for testing purposes.

I have a function called mySort(array, comparator), but how can I make it work like array.sort(comparator)?

I also need to have a default comparator. Would simply using

return a<b ? -1 : a>b ? +1 : 0
be enough?

Are there any other potential issues I should be aware of?

On another note: My basic sorting function is functioning, but I'd prefer to replace it with more robust, tested code.

Answer №1

Function.prototype.sort=function(comparatorFunction){ return customSort(this,comparatorFunction);};

Alternatively with personalized arrays:

customArray=Object.create(Function.prototype);
customArray.sort=function(compareFunc){ return customSort(this,compareFunc);};

sample=Object.create(customArray);
sample.push(3,4);
sample.sort();

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

I'm curious if there is a specific jQuery event that triggers right before an element loses focus or right before the next element gains focus

I am facing a situation where I have two input elements in a form that are closely connected. The first element triggers an ajax call to check for existing data in the database when the user tries to move away from it, while the second element opens a moda ...

Utilizing fluent-ffmpeg in nodejs and express to effortlessly download a video

I've been recently tackling a side project that involves downloading videos from Reddit. The tricky part is that the video and audio are stored in separate files, requiring me to merge them before being able to download them onto the client's dev ...

What method can I use in pure Javascript to identify which day the week begins on, either Monday or Sunday, based on the

Can someone help me determine the start day of the week in local time using only Javascript? The start day could be Monday, Sunday, Saturday, or Friday. I came across this helpful resource on Stack Overflow: <firstDay day="mon" territories="001 AD AI ...

What is the process of establishing a connection to a web service using Meteor or Node.js?

Currently working on developing a package that interfaces with a web service (either through nodejs or meteor). The web service will be delivering real-time data, so I am in need of a mechanism like a listener or trigger event that can alert me when new da ...

What is the best way to upload a file to a server while working with Vue.js in the Filemanager plugin, or how can I access a global function

How can I upload a file to the server using Vue.js in the Filemanager plugin? I have tried multiple methods and the console log shows that the upload was successful, but I am not able to see any files on the server. Does anyone know what could be wrong? & ...

Manually assigning a value to a model in Angular for data-binding

Currently utilizing angular.js 1.4 and I have a data-binding input setup as follows: <input ng-model="name"> Is there a way to manually change the value without physically entering text into the input field? Perhaps by accessing the angular object, ...

"An error occurs when attempting to clear Rad Grid data with javascript: htmlfile: Invalid argument thrown

Hello, I am currently developing an ASP.NET application. I am facing an issue where I need to clear the data in a Rad grid upon button click using JavaScript. The code snippet that I have attempted for this is as follows: document.getElementById(&a ...

Non-negotiable, non-deletable component of a text field

My goal is to create a textarea with a default value that cannot be removed by the user, but they should be able to add extra text after it. <textarea>This is constant</textarea> As shown above, the textarea has a default value. How can I ...

Error: myFunction has not been declared

Can anyone figure out what's going on here? http://jsfiddle.net/sVT54/ <button onclick="myFunction()">Click me</button> <p id="demo"></p> function myFunction() { document.getElementById("demo").innerHTML="Hello World"; } ...

Tips for Sending an Ajax POST Request

I've been using the following code snippet to initiate a POST request to my node API in order to generate a PDF. However, upon execution, my node console displays the following errors: $('#renderPDF').click(function(){ var request = $ ...

What steps should be taken to ensure that the onmouseover and onmouseout settings function correctly?

The Problem Currently, I have a setup for an online store where the shopping cart can be viewed by hovering over a div in the navigation menu. In my previous prototype, the relationship between the shoppingTab div and the trolley div allowed the shopping ...

The domain retrieval is contingent on the language preference of the user

A task has been assigned to create a script in JavaScript/jQuery (or other suitable technologies) that will return a domain with a .pl extension if the user's browser language is set to Polish. Otherwise, the script should return a .eu domain extensio ...

Is the Jest function, containing an asynchronous call to User.findAll [using Sequelize with PostgreSQL], failing its test?

Why is my test failing for the getAllUsers function? I suspect that the assertions are executed before all async calls to User.findAll complete. Any suggestions on how to fix this? Here is the code being tested: const { Op } = require('sequelize&apo ...

Iterate through the collection to retrieve the value associated with a specific key

In the JSON response I have received, I am trying to extract the value of "fees" corresponding to "detailComponent" with the identifier "FULL_FEE". However, instead of retrieving the desired value, the loop seems to be fetching the last value associated wi ...

Retrieving data from MongoDB and presenting it neatly in Bootstrap cards

I have successfully retrieved data from MongoDB and displayed it in Bootstrap 5 cards. However, I am facing an issue where all the cards are appearing in a single row if there are multiple entries in the database. What I want to achieve is to utilize the ...

Multiple executions of Ajax callback detected

I am trying to utilize an ajax-call to a script that searches for numbers. The response is expected to be a json array containing names and surnames as strings. However, I am facing an issue where the script seems to be looping and sending multiple respons ...

Create a function in JavaScript that is able to accept a variable number of objects as arguments

I have a good grasp of how to pass infinite parameters in a function in JavaScript. But what about accepting any number of objects as parameters in a function? This is my current implementation: function merge<T>(objA: T, objB: T){ return Object. ...

My components views are not being rendered in Angular 4

Currently, I am in the process of learning how to use Angular 4, but I seem to be encountering an issue. Despite having a functioning App template that renders perfectly fine, I am facing difficulties when attempting to render more than one template. I cre ...

Having trouble fetching JSON data from an Express server?

I successfully set up my first basic server using express, however I am encountering an issue when trying to fetch JSON data from a file called data.json: Here is the code for the server: const express = require('express') const app = express() ...

The value 'true' was returned for an attribute 'exact' that is not of boolean type

How can I resolve this warning? Sample Code const Main = (header, navigation) => { return ( <> <div> {navigation !== false && <Navigation />} </div> </> ) } I attempted this soluti ...