Clock
Test duration:
20
min
Notes
No. of questions:
10
Tie
Level of experience:
Entry/Mid/Expert

Express JS Test

iMocha’s Express.JS test is the ideal pre-hire test for recruiters and hiring managers to assess candidates objectively. This test is apt for hiring job-fit candidates for roles like Express.JS Developer. Our Express JS online test has helped our customers to reduce their hiring time by 45% and increase interview-to-selection ratio by 62%.

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About

Express JS Online Assessment

Express.JS test helps recruiters and hiring managers to effectively assess the skills of  Express JS developers before an interview. Express.JS or simply Express is a web application that provides a robust set of features for web and mobile applications. It is an open-source framework developed and maintained by the Node.js foundation. This Express.JS skills assessment test is designed to check the development and programming skills of Express JS Developer  as per industry standards.

Express.JS test is designed by subject matter experts (SMEs) to gauge the knowledge of Express JS consultant and developers about Express JS web application framework for Node.JS before hiring. Using powerful reporting, you can have a detailed analysis of the test results and make  better hiring decisions.

Two important use cases for Express.JS skill test

#1 Identifying job-fit candidates based on job roles

You can create customized skill assessments for any given job role. Using this feature, you can choose questions from different skill types, including functional, technical, and soft skills. For example, with our customized Express.js skills assessment test, you can evaluate candidates’ knowledge of Express JS Basics, Form Data, Servers and Ports Template Engine, Local Storage, ES6 and Logic, and more, to assess the best-fit candidate for the role.

#2 Skill-gap analysis of your employees

iMocha allows you to measure employees' skill competency through Express.JS tests. It determines the existing skill level and identifies the areas for growth. It also measures the knowledge and impact of the training and traces individual employees’ progress. For example, you can use our Express.JS skills assessment test to identify a consultant’s knowledge about ES6 that makes codes readable and adds functionality, building API and routing, and other skills, and perform skills gap analysis.

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How it works

Test Summary

This Express.JS test enables employers and recruiters to identify and hire Express JS developer by evaluating working skills and job readiness. With this Express.js skills assessment test, hiring managers can evaluate candidate’s applied skills through work experience, not just theoretical knowledge.

Test Creation Process

Our Express.JS skills assessment tests will help you assess candidates' specific skills. These questions are created by Subject Matter Experts (SMEs) based on their knowledge and expertise. Example: questions based on Express JS development, Express JS framework, or how to connect database to Express JS will only be created by Express JS specialists.

You can pick questions you like or request us to create more questions if required.

Test Analytics Report

iMocha’s intelligent reporting and analytics provides you with quick overview of the candidate’s performance in each section of the Express.JS tests. The candidate feedback module is an important part of iMocha to ensure candidates have an excellent experience.

Test Question Format

Express.JS assessment test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, AI-LogicBox, Coding Simulators, True or False Questions, etc.

Test Design Guidelines

Express.JS skills test is designed considering EEOC (Equal Employment Opportunity Commission) guidelines, it will help you assess and hire diverse talent without any bias.

Test Duration
20
No. of Questions
10
Level of Expertise
Entry/Mid/Expert
Useful for hiring
  • Express.JS Developer
Topics Covered
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Local Storage

iMocha’s Express.JS skills assessment test helps recruiters and hiring managers to evaluate candidate’s understanding of LocalStorage that helps to store temporary data in the browser memory.

Form Data

This test check candidate’s knowledge of form data on a website that collects user information. Server and Ports Template Engines Our assessment validates applicant’s understanding of template engine that helps to use static files in an application.
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Express JS Basics

This Express.JS test helps recruiters and hiring managers to assess candidate’s basic knowledge about ExpressJS framework.
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Building APIs and Routing

Our test evaluates candidate’s ability to build APIs using ExpressJS and understanding of routing that determines how client requests are handled by the application endpoints.
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Functions

This test evaluates candidate’s understanding about functions that are set of statements performing a task or calculating a value
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Rendering Template

Our Express.JS assessment test gauges candidate’s proficiency in rendering template that shows output in browser.
Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.

Question types :

Multiple Option

Topic:

Difficulty:

Hard


Q 1. You have been asked to train « Naive Bayes model for spam detection dataset

Using Python command, what wil you add in the given code at XXXX to deciore, it and train your modal for the given dataset?

import numpy os np

X= nporroyll 3. 2b[1 21 [2.21.[3,21)
Y= nporray(fi.a,a.1))

XXXX

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

Question types :

Multiple Option

Topic:

Machine teaming

Difficulty:

Hard


Q 1. Q2 Lets assume that you have 6 Pandas DataFrome(af) in the below tole.

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074

When the following commend is executed, what hoppens to the DatoFrome?

df= defiinat()
Y= nporray(fi.a,a.1))

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
it gives an error becouse of the third row which has on empty string.
None of these

Question types :

Multiple Option

Topic:

API Application Method/AJAX

Difficulty:

Easy

Question:

You sent the following AJAX request:

$.post("/process", {name:'john'}, function(data){
    // Do some stuff
});
 
What will be the answer from the server?
Note: On the server-side, we have the code given below:
 
Code:
app.post('/process', function(req, res){
    var data = '';
 
    if(req.xhr){
        data += 'One';
    }
 
    if(req.body.name){
        data += 'Two';
    }
 
    res.send(data);
});


Options

  • 'OneTwo'
  • 'One'
  • 'Two'
  • ' '
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You can customize this test by
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Setting the difficulty level of the test

Choose easy, medium, or tricky questions from our skill libraries to assess candidates of different experience levels.
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Combining multiple skills into one test

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Adding your own
questions to the test

Add, edit, or bulk upload your coding, MCQ, and whiteboard questions.
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Requesting a tailor-made test

Receive a tailored assessment created by our subject matter experts to ensure adequate screening.

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Now my team of 25 recruiters has adopted this measure and it has done wonders for our clients. Thanks to the Customer Success Team of iMocha. They have shared the best practices of quick test creation and also helped us in training all our recruiters for various functionalities of the tool.
Client

Vipin Sharma,

Mobile Programming
FAQ
What is Data Science?
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.NET Design Pattern test helps recruiters to evaluate candidates' ability to work on GOF Decorator Design Pattern to solve recurring design problems and design flexible and reusable object-oriented software

Why use iMocha’s online data science test?
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What are the key skills that recruiter should look for while hiring a Data Scientist?
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What are few interview questions that recruiter/hiring manager should ask while hiring a data scientist?
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How do you assess the data scientists?
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How is Express.js test customized?
Down Arrow Circle

Express.js test is created by subject matter experts (SMEs) based on the difficulty level of the test. You can combine multiple skills into the test, including both technical skills and soft skills, such as communication, aptitude, cognitive abilities, business language, and more. You can also add your own questions, edit the existing questions, or bulk upload coding questions, whiteboarding questions, and MCQs. You can also request tailored Express.JS assessment created by SMEs for effective screening.

What are the certifications required for this role?
Down Arrow Circle

Some of the common certifications required for the role are:

• The Complete Node.js Developer Course (3rd Edition)

• NodeJS – The Complete Guide (REST APIs, MVC, Deno, GraphQL)

• Express JS Fundamentals

• Complete Node.js Developer in 2022: Zero to Mastery

• Learn Node.js: The Complete Course for Beginners

• Node.js API Mastercalss with Express & MongoDB

What are the most common interview questions for this role?
Down Arrow Circle

Some of the most common interview questions for this role are:

• What is Node.js?

• What is Express.js?

• What is the combined use of Node.js and Express.js?

• What is the use of CLI in Node.js?

• What are the common language that support Node.js?

• What is JavaScript engine?

What are roles and responsibilities of Express JS Developer?
Down Arrow Circle

Some of the roles and responsibilities of Express JS developers are:

• Develop and maintain server-side network components

• Ensure optimal performance of central database with responsiveness to front-end requests

• Collaborate with front-end developers on integration of different elements

• Design customer-facing UI with back-end services for business processes

• Develop high-performance applications through reusable, efficient, and testable code

• Run diagnostic tests, repair defects, and provide technical support

• Document Express.js processes

• Recommend and implement changes

What are the required skillsets of Express JS Developer?
Down Arrow Circle

Some of the requires skillsets of Express JS Developer are:

Hard Skills

• Basic knowledge of Node.js and JavaScript.

• Should be able to develop, deploy, and maintain network applications.

• Extensive knowledge of web stacks, frameworks and libraries is needed.

• Understanding of front-end technologies like CSS3 and HTML5 is always preferable.

• Familiarity with continuous integration and automated testing

Soft Skills

• Communication

• Collaboration

• Interpersonal skills

What is the package of Express JS Developer?
Down Arrow Circle

On an average, Express JS developer salary ranges from $88K per year to $117K per year. The salary is on the higher side because of the increasing demand for Express JS developers.