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Javascript Online Assessment Test

Topics Covered

  • Functions
  • Modules & Classes
  • Datatypes & Expressions
  • DOM (Document Object Model)

Useful for hiring

  • JavaScript Developer/ Programmer
  • Front-End JavaScript Developer

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Question

Consider the following code snippet:

let succ = function(x) x+1, yes = function() true, no = function() false;

What convenience does the above code snippet provide?

Answer
    • Functional behaviour

    • Modular behaviour

    • No convenience

    • Shorthand expression

Question

Consider the given lines of code.

const abc = 'abc';
abc = 'xyz';
const val = {x: 2};

Which of the following, if you do, will produce an error?

1. const abc = 'xyz';
2. val.x = 3;

Answer
    • Only 1

    • Only 2

    • Both 1 and 2

    • Neither 1 nor 2

Question

You are creating a weak set as shown below. You pass an array containing two objects to the WeakSet constructor for creating the weak set.

let key1 = {},
    key2 = {},
    set = new WeakSet([key1, key2]);

What will happen if your array contains non-object values instead of the objects?

Answer
    • Weak set will be created with some garbage values
       

    • Weak set will be created with the non-object values passed
       

    • Non-object values will be added to the weak set and a warning will be raised
       

    • An error will be thrown
       

Test details:

JavaScript online test helps tech recruiters and hiring managers to assess JavaScript programming skills of the candidate in implementing front-end logic while developing web applications. Online JavaScript coding test questions are designed & validated by industry experts to assess & hire JavaScript developer as per the industry standards.

JavaScript assessment test may contain MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blank, Descriptive, Whiteboard Questions, Audio / Video Questions, True or False. The combination of application and theory questions in JavaScript online coding test helps to evaluate technical as well as practical skills of the candidates.

Test Details: 40 minutes 
40 Application Oriented Questions

Test description:

JavaScript often called as 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 as the “assembly language of the web”. JavaScript supports event-driven, functional, and imperative programming styles.


Why use Interview Mocha’s JavaScript online test?
 
JavaScript online test helps employers to assess & hire job-fit candidate faster, reduce hiring time and skill mapping of existing employees. Top tech companies are using our JavaScript programming test to reduce 85% of candidate filtration time.
 
JavaScript assessment test helps to screen the candidates who possess traits as follows:

1.  Ability to write reusable code in JavaScript
2.  Excellent knowledge of front end programming languages like JQuery, CSS3, HTML5
3.  Strong experience of working on server-side CSS pre-processors
4.  Ability to integrate multiple data sources and databases into one system
5.  Knowledge of advanced JavaScript libraries and frameworks such as AngularJS, KnockoutJS, BackboneJS, ReactJS
6.  Familiarity with asynchronous request handling, partial page updates, and AJAX
7.  Work experience with handling cross-browser compatibility issues and ability to resolve them
 
JavaScript developer test helps to screen candidates in a short time. Intelligent reporting provides highlights of strengths and weaknesses of the candidate so that you can select only relevant candidates and ensure they have skills required for respective job description. This helps to optimize the candidate screening process and reduces hiring time up to 40%.

Online JavaScript test is designed with consideration of EEOC guidelines for candidate assessment. It will help recruiters to assess and hire diverse talent without any bias.

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