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JavaScript Subjective Test
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JavaScript Subjective Test

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Online JavaScript Subjective Test

JavaScript, often called JS, is a programming language that helps to create and control dynamic website content. It allows users to interact with the client-side scripts, communicate asynchronously and document the content accordingly. It is also called the “assembly language of the web.” JavaScript supports event-driven, functional, and imperative programming styles.

Online JavaScript (v6) assessment test helps tech recruiters and hiring managers to assess the candidate’s JavaScript programming skills in implementing front-end logic while developing web applications. Online JavaScript test questions are designed and validated by industry experts to evaluate the programming aptitude of JavaScript developers as per industry standards.

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Test Summary

Online JavaScript programming test helps to screen the candidates who possess traits as follows:  

  • Ability to write reusable code in JavaScript ES6 
  • Excellent knowledge of front-end programming languages like jQuery, CSS3, HTML5 
  • Strong experience working on server-side CSS pre-processors 
  • Ability to integrate multiple data sources and databases into one system 
  • Knowledge of advanced JavaScript libraries and frameworks such as AngularJS, Knockouts, BackboneJS, ReactJS 
  • Familiarity with asynchronous request handling, partial page updates, and AJAX 
  • Work experience with handling cross-browser compatibility issues and the ability to resolve them

Our JavaScript technical test (v6) is designed with consideration of EEOC guidelines for online candidate assessment. It will help recruiters to assess and hire diverse talent without any bias.

This JavaScript developer test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, AI-LogicBox (Pseudo-Coding Platform), Coding Simulators, True or False Questions, etc.

Useful for hiring
  • Javascript Developer
  • Javascript Programmer
  • Front End Developer
Test Duration
No. of Questions
Level of Expertise
Topics Covered

Dom Manuplication

Event loops


Hashes and Classes


Classes and Member functions


Conditionals and Alert Windows


String Interpolation (String Formatting)

Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.
Question type
Logic Box
Topics covered
Built-in functions in JavaScript


Q 1. You are creating a program to calculate the total bill amount for a restaurant. Create a JavaScript program that defines a class Order to represent each order with a dish name, price, and quantity. A program that defines the Order class and uses some built-in functions to manipulate and display the data is given.
Complete the code as per the given instructions:
At Blank 1: Use the method that calculates the total bill amount for all the orders in the orders array.
At Blank 2: Analyze the code and get the Total bill value from the total order.
At Blank 3: Use the method that sorts the orders array based on the price of each order.
At Blank 4: Use the method that filters the orders array based on the condition that the price of each order should be greater than or equal to 10.
At Blank 5: Loop through the orders array and display each order's dish name, price, and quantity.
A few lines in the Sample Script are missing (Enter your code here). You need to complete the code as per the given instructions.
Sample Script: class Order { dishName; price; quantity;
constructor(dishName, price, quantity) { this.dishName = dishName; this.price = price; this.quantity = quantity; }
getTotalPrice() { return this.price * this.quantity;
} }
const orders = [ new Order("Burger", 8, 2), new Order("Pizza", 12, 1), new Order("Sandwich", 6, 3), new Order("Pasta", 10, 2), new Order("Coke", 2, 4), ];
const totalBillAmount =
((total, order) =>
console.log(Total Bill Amount: ${totalBillAmount});
const sortedOrders = orders. ((a, b) => a.price - b.price);
console.log("Sorted Orders:"); console.log(sortedOrders); const filteredOrders = orders. console.log("Filtered Orders:");
console.log("All Orders:");
(order => { console.log(${order.dishName} - ${order.price} x ${order.quantity} = ${order.getTotalPrice()}); });

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