JavaScript Developer - Upskill with Webdroid

About Course

A JavaScript Developer is a specialized programmer proficient in building and maintaining web applications using JavaScript, both for front-end and back-end development. They work with frameworks like React, Angular, or Vue for creating dynamic user interfaces and may also use Node.js for server-side scripting. Their role includes debugging, optimizing web performance, and ensuring cross-browser compatibility. Strong knowledge of HTML, CSS, and integration with APIs is essential.

Core JavaScript syntax and programming concepts.
DOM manipulation for interactive web pages.
Asynchronous programming using promises, async/await, and callbacks.
JavaScript frameworks/libraries like React, Angular, or Vue.js.
Working with APIs through AJAX or Fetch for data exchange.
ES6+ features such as modules, arrow functions, and template literals.
Debugging and testing JavaScript applications using tools like Chrome DevTools and Jest.
Best practices for optimizing performance and ensuring code maintainability.

Course Content

Introduction to JavaScript

How to communicate with the computer?

00:00
What is JS?

00:00
JS – Advantages and Limitations

00:00
Where is JS used today?

00:00
Development tools

00:00
Online development environment

00:00
Local development environment (code editor, interpreter, debugger)

00:00
How can you run your JavaScript code?

00:00
Executing the code directly in the console.

00:00

Variables, Data Types, Type Casting, and Comments

Naming, declaring and initializing variables

00:00
Declarations and strict mode

00:00
Changing variable values

00:00
Constants

00:00
Scope (blocks, shadowing, hoisting)

00:00
Data types in JS;

00:00
Primitive data types – Boolean

00:00
Primitive data types – Number

00:00
Primitive data types – BigInt

00:00
Primitive data types – String

00:00
Primitive data types – undefined

00:00
Primitive data types – Symbol

00:00
Primitive data types – null

00:00
Type casting – primitive construction functions – null

00:00
Type casting – primitive conversions

00:00
Conversion to String

00:00
Conversion to Number

00:00
Conversion to Boolean

00:00
Conversion to BigInt

00:00
Implicit Conversions

00:00
Complex data types – Object

00:00
Complex data types – Array

00:00
Array – the length property

00:00
Array – the indexOf method

00:00
Array – the push method

00:00
Array – the unshift method

00:00
Array – the pop method

00:00
Array – the reverse method

00:00
Array – the slice method

00:00
Array – the concat method

00:00
Single-line comments

00:00
Multi-line comments

00:00
Documentation

00:00
Code toggle.

00:00

Operators and User Interaction

What are operators?

00:00
Assignment operators

00:00
Arithmetic operators

00:00
Arithmetic operators – compound assignment operators

00:00
Logical operators

00:00
Logical operators – compound assignment operators

00:00
String operators: concatenation and compound assignment

00:00
Comparison operators

00:00
Other JS operators (typeof, instanceof, delete, and ternary)

00:00
Operator precedence

00:00
How to interact with the user in JavaScript?

00:00
Dialog boxes – alert

00:00
Dialog boxes – confirm

00:00
Dialog boxes – prompt.

00:00

Control Flow – Conditional Execution and Loops

What is conditional execution?

00:00
The if statement

00:00
The if–else statement

00:00
The if–else–if statement

00:00
The conditional operator

00:00
The switch–case statement

00:00
What are loops?

00:00
The while loop

00:00
The do–while loop

00:00
The for loop

00:00
The for–of loop

00:00
The for–in loop

00:00
The break and continue statements.

00:00

Functions

What are functions?

00:00
Declaring functions

00:00
Calling functions

00:00
Local variables

00:00
The return statement

00:00
Function parameters

00:00
Shadowing

00:00
Parameter validation

00:00
Recursion

00:00
Functions as first-class members

00:00
Function expressions

00:00
Synchronous callbacks

00:00
Asynchronous callbacks

00:00
Arrow functions.

00:00

Errors, exceptions, debugging, and troubleshooting

Errors – the programmer’s daily bread

00:00
Natural languages and communication errors

00:00
Errors vs exceptions

00:00
Errors without exceptions

00:00
Limited confidence

00:00
Types of errors – SyntaxError

00:00
Types of errors – ReferenceError

00:00
Types of errors – TypeError

00:00
Types of errors – RangeError

00:00
The try–catch statement

00:00
Conditional exception handling

00:00
The finally statement

00:00
The throw statement and custom errors

00:00
What is debugging?

00:00
Step-by-step execution

00:00
Environment preparation

00:00
The debugger statement

00:00
The resume option

00:00
Code debugging without the debugger statement

00:00
The step over option

00:00
The step into option

00:00
The call stack option

00:00
Viewing and modifying variables

00:00
The step out option

00:00
TMeasuring code execution time.

00:00

About Course

What Will You Learn?

Course Content

Introduction to JavaScript

How to communicate with the computer?

What is JS?

JS – Advantages and Limitations

Where is JS used today?

Development tools

Online development environment

Local development environment (code editor, interpreter, debugger)

How can you run your JavaScript code?

Executing the code directly in the console.

Variables, Data Types, Type Casting, and Comments

Naming, declaring and initializing variables

Declarations and strict mode

Changing variable values

Constants

Scope (blocks, shadowing, hoisting)

Data types in JS;

Primitive data types – Boolean

Primitive data types – Number

Primitive data types – BigInt

Primitive data types – String

Primitive data types – undefined

Primitive data types – Symbol

Primitive data types – null

Type casting – primitive construction functions – null

Type casting – primitive conversions

Conversion to String

Conversion to Number

Conversion to Boolean

Conversion to BigInt

Implicit Conversions

Complex data types – Object

Complex data types – Array

Array – the length property

Array – the indexOf method

Array – the push method

Array – the unshift method

Array – the pop method

Array – the reverse method

Array – the slice method

Array – the concat method

Single-line comments

Multi-line comments

Documentation

Code toggle.

Operators and User Interaction

What are operators?

Assignment operators

Arithmetic operators

Arithmetic operators – compound assignment operators

Logical operators

Logical operators – compound assignment operators

String operators: concatenation and compound assignment

Comparison operators

Other JS operators (typeof, instanceof, delete, and ternary)

Operator precedence

How to interact with the user in JavaScript?

Dialog boxes – alert

Dialog boxes – confirm

Dialog boxes – prompt.

Control Flow – Conditional Execution and Loops

What is conditional execution?

The if statement

The if–else statement

The if–else–if statement

The conditional operator

The switch–case statement

What are loops?

The while loop

The do–while loop

The for loop

The for–of loop

The for–in loop

The break and continue statements.

Functions

What are functions?

Declaring functions