javascript (jse) q3

Question 1

an object-oriented computer programming language commonly used to create interactive effects within web browsers.

Answer 1

Javascript

Question 2

Most modern JavaScript engines use the —. This technique consists of compiling code fragments during the execution of the program (more than a single instruction) and allows you to increase its performance.

Answer 2

Just In Time Compilation technique (JIT
Compilation).

Question 3

JIT Compilation stands for?

Answer 3

Just In Time Compilation technique (JIT
Compilation).

Question 4

Back in the early -, all web pages were static.

Answer 4

90s

Question 5

Things changed in - when the - corporation hired -,

Answer 5

1995, Netscape, Brendan Eich

Question 6

The new language was called LiveScript, but soon after its name was changed to -.

Answer 6

JavaScript

Question 7

5 Disadvantages of (Jse)

Answer 7

1. Client-side Security
2. Browser Support
3. Lack of Debugging Facility
4. Single Inheritance
5. Sluggish Bitwise Function

Question 8

5 Advantages of (Jse)

Answer 8

1. Speed
2. Simplicity
3. Popularity
4. Interoperability
5. Server Load

Question 9

JavaScript stores a number as a — floating-point number and operators operate on — bitwise operands.

Answer 9

64-bit, 32-bit

Question 10

Since JavaScript is an ‘—‘ language, it reduces the time required by other programming languages like Java for compilation. JavaScript is also a client-side script.

Answer 10

interpreted

Question 11

Commonly known as code playgrounds, are sites that act as a simple editor and runtime environment. All of them have similar sets of features. They have different user interfaces, but in principle, they behave in a similar way. They allow you to write code, run it for testing purposes and most often share it with other users.

Answer 11

JavaScript IDE (Integrated Development Environment )

Question 12

What does IDE stand for?

Answer 12

(Integrated Development Environment )

Question 13

The 4 most popular JavaScript IDE are the following:

Answer 13

1. JSFiddle
2. CodePen
3. JsBin
4. Plunker

Question 14

3 Elements of JavaScript LDE and what does LDE stand for?

Answer 14

1. sufficient: a code editor
2. interpreter
3. debugger

Local Development Environment

Question 15

the JavaScript requirements for the integrated development environment are very modest. In most cases, especially at the beginning of development.

Answer 15

JavaScript LDE (Local Development Environment)

Question 16

Other JavaScript LDE elements:

Answer 16

• Package managers
•Task runners and module bundlers
•Testing framework
•Security analyzers

Question 17

The code of almost all programming languages is composed of some form of text.
So, to write the code, we need a text editor. But it needs to be an application that writes plain text it can’t be a rich text editor.

Answer 17

Code Editor

Question 18

4 Popular Code Editors

Answer 18

1. Visual Studio Code
2. WebStorm
3. Sublime Text
4. Notepad++

Question 19

It functions as a runtime environment for our program. It checks whether we have made any formal errors, for example, making a typo in the name of a function or forgetting to close a parenthesis, and then it executes the program instruction by instruction.

Answer 19

Interpreter

Question 20

Is a tool that allows you to slow down or even halt the execution of a program, run instructions step by step, and look at and analyze the state of the program at any given moment.

Answer 20

Debugger

Question 21

enables to print the code

Answer 21

Console.log

Question 22

the parameter we want to print or in appeared in the program

Answer 22

(“Hello, World!”);

Question 23

• enabling the management of libraries (containing ready-made solutions that we can use in our programs).

Answer 23

Package managers

Question 24

• used, in simple terms, to automate the process of software development and merge the resulting code from many files and libraries.

Answer 24

Task runners and module bundlers

Question 25

• allows for automatic testing of the correctness of our program in search of potential errors.

Answer 25

Testing framework

Question 26

as you can guess, used to control the security of our solution.

Answer 26

Security analyzers

Question 27

Powerful code editor free for both personal and commercial use.

Answer 27

Visual Studio Code

Question 28

Which the code editor is just one of the smaller elements in a huge set of tools that improve code development.

Answer 28

WebStorm

Question 29

Fast and easy-to-use code editor with many advanced features, like multiple-line editing, fast search, and others.

Answer 29

Sublime Text

Question 30

Free and lightweight code and text editor.

Answer 30

Notepad++