Other

Question 1

DRY

Answer 1

Don’t Repeat Yourself

Reduce redundancy, easier code maintenance, improved readability and improved code consistency

Question 2

Microservice

Answer 2

Dividing seemingly one app into multiple independent “apps” so called services.
It’s an architectural design style that can divide code with different services less reliant on each other (ex. monorepository)

Question 3

CommonJS

Answer 3

Modular code system primarily on server-side scripting/node.

Modules = reusable code synchronously loaded (meaning if something in the code doesn’t work then the execution of code stops there)

Question 4

WebMVC

Answer 4

Model view controller
A design pattern for handling user data/actions. Frontend and backend have separate patterns but can handle the same data/actions.

Model:
- Handles logic, ex. like post
Controller:
- Handles the user request, calling the model
View:
- What the user sees before and after its request

Question 5

Multi tier architecture

Answer 5

Separating an application into most commonly presentation tier (frontend), logic tier (backend) and data tier (database)

Question 6

Twelve-factor-app

Answer 6

Modern methodology for building scalable, maintainable SaaS (Software as a Service) apps (cloud based apps) that are easily deployed in cloud environments

Question 7

YAML

Answer 7

Human readable data serialization format
Simple and clear for defining data but less structured than JSON and XML

Question 8

Edge computing

Answer 8

Computing (handling) data at the location it’s needed so it’s not relying too much on cloud infrastructure which improves latency and bandwidth

Ex. phone security camera etc

Question 9

Require

Answer 9

CommonJS syntax for importing modules, synchronously. Commonly used in Nodejs

Question 10

Express

Answer 10

Web App framework for Nodejs that includes routing, middleware management and HTTP requests and responses so you don’t have to set it up manually. Simplified server-side scripting.

Question 11

Enviroment variables

Answer 11

Declare variables for your environment (they can differ between environments) such as API endpoints or settings

Keep sensitive information in environment files (.env)

Question 12

Readme

Answer 12

MD file for documentation that developers need on information about the project such as installations

Question 13

Node

Answer 13

Nodejs

Open source (available for all) cross platform (available across different systems, windows, mac, linux etc) JavaScript runtime enviroment (uses JavaScript)

Asynchronous handling of real time data for building primarily backend scaleble high performance applications

Question 14

Import

Answer 14

Are ES6 modules
Hoisted
Named, unnamed = static import
import() = dynamic import (asynchronous import)

Question 15

Component

Answer 15

In frontend:
Reusable, self contained UI. Class based or functional. Receive data via props
In general:
Micro service or modular system for specific independent functionality

Question 16

Vite

Answer 16

Frontend build tool for faster startup. HMR and optimized build process

Question 17

API

Answer 17

Application programming interface

Rules for allowing communication between applications

Question 18

Babel

Answer 18

Transpiler for ES6+ to older environments

Question 19

Separation of concern

Answer 19

Dividing code into district sections with individual responsibility

Question 20

CI

Answer 20

Continuous integration

Before merging it (for example). Checking if your code works (unit/comp testing)

Question 21

CD

Answer 21

Continuous deployment

When you’ve merged. Check if code is compatible with the rest of the application (integration testing)

Question 22

Dependency management

Answer 22

Defining packages for your projects.

Configuration files such as package.json

Question 23

Package manager

Answer 23

A tool for installation and management of specified or unspecified dependencies (packages)

Question 24

Backlog

Answer 24

Prioretized task lot for a team under development of a project

Question 25

Obfuscation

Answer 25

Making code unreadable/difficult to read

Question 26

Minification

Answer 26

Minimizing code size

Question 27

TTFHW

Answer 27

Time To First Hello World

Question 28

ES6

Answer 28

Newest JavaScript update, added arrow functions for example. New features and syntax improvements

Question 29

Task runners

Answer 29

Automates development tasks (commands)

“scripts” {
“start”: “react-scripts start”
}

Question 30

Linting

Answer 30

Make code “prettier”. Prevent violation of code standards

Question 31

Continuous monitoring

Answer 31

Continuously check the system to identify problems before affecting the users

Question 32

Persistency

Answer 32

Store data over time

Ex. so that users can close the browser and still be logged in
(Web storage, cookies etc)

Question 33

Restful

Answer 33

Representational state transfer

Web service architecture

Using stateless principles for communication with HTTP methods over the web. Makes it easier on the backend so that it doesn’t have to manage states, just data.

Question 34

Version control

Answer 34

Records versions of your code. It adds possibility of collaborations, history tracking, backup and conflict resolution

Question 35

Self organizing teams

Answer 35

Central in agile methodology. Teams and team members can work autonomously without micro managing