JavaScript Tutorial For Beginners | JavaScript Training | JavaScript Programming Tutorial | Edureka

Nov 5, 20189 likes1,726 views

( ** Full Stack Web Development Training: https://www.edureka.co/masters-program/full-stack-developer-training ** ) This Edureka tutorial on JavaScript explains all the fundamentals of JavaScript with examples. It also explains various features and applications of JavaScript. Following are the topics included in this tutorial: 1. What Is JavaScript? 2. Why Use JavaScript 3. JavaScript Fundamentals - Data Types - Variables - Constants - Loops - Conditional Statements - Functions

JavaScript Tutorial For Beginners | JavaScript Training | JavaScript Programming Tutorial | Edureka

Agenda
What is JavaScript? Why learn JavaScript? JavaScript Fundamentals

What is JavaScript?
Web pages more interactive
Interpreted language
Interpreter
Runs on the client’s computer
JavaScript is a scripting language that allows you to implement complex things on web
pages.

What Can JavaScript do?
Web application
Website
Games
Smart watches

JavaScript Framework
AngularJS
ReactJS
Meteor
jQuery

The Big Picture – HTML, CSS & JavaScript
HTML CSS JavaScript

Benefits Of JavaScript
Easy-peezy
Easy to learn Speed

Benefits of JavaScript
Provides rich framework
Makes web pages more
interactive

Benefits Of JavaScript
No compilation needed Platform Independent

Variables
Memory location
Variable name
Variable is a name given to a memory location which acts as a container for storing data.
Syntax:
1 let age;
2 age = 22;

Most read

Constants
Constants are fixed values that do not change during execution time.
Syntax:
1
2
const mybirthday;
mybirthday = ‘03.08.1996’ ;
Examples of constants

Primitive Data Types
Strings Boolean
TRUE
FALSE
Numbers
Null Undefined

Reference Data Types - Objects
An object is a standalone entity, with properties and type.
Syntax:
1 let object1 = { };
Name
Age
Eye-colour

Reference Data Types - Arrays
0 1 2 3 4
An array is a data structure that contains a list of elements. These elements are all of the
same data type, such as an integer or string.
Syntax:
1
2
let arr[ ];
let arr = new Array( ) ;

Reference Data Types - Functions
A function is a block of organized, reusable code that is used to perform a single, related action.
Functions
Predefined
Functions
User Defined
Functions
Syntax:
1
2
3
function greetings( ) {
alert(‘ Hello everyone! ‘);
}
name of the function
enter parameters here

Conditional Statements
Conditional statement is a set of rules performed if a certain condition is met. It is like an
‘If-Then’ statement. (IF a condition is met, THEN an action is performed)
If Statement
If code
End
Start
True
Condition
False
Exit
Syntax:
1
2
3
if(condition) {
statement;
}

Loops
Loops are used to repeat a specific block until some end condition is met.
Loops
do whilewhilefor
Start
Conditional Code
Condition
False
True
End loop

While Loop
While the condition is true, the code within the loop is executed.
Start
Conditional Code
End
True
False
Condition
While loop
Syntax:
1
2
3
while(condition) {
loop code;
}

Do While Loop
This loop will first execute the code, then check the condition and while
the condition holds true, execute repeatedly.
Start
Conditional Code
End
True
False
Condition
Do while loop
Syntax:
1
2
3
4
do {
loop code;
}
while(condition);

For Loop
Repeatedly executes the loop code while a given condition is TRUE. It
tests the condition before executing the loop body.
For loop
Start
Execute Statement (s)
End
Next item from
sequence
If no more itemsItem from
sequenceSyntax:
1
2
3
for(begin; condition; step) {
loop code;
}

Switch Case
The switch statement is used to perform
different actions based on different
conditions.
Syntax:
1
2
3
4
5
6
7
8
9
10
switch(expression) {
case 1 :
code block 1
break;
case 2 :
code block 2
break;
default :
code block 3
}
Start
Switch expression
End
Case 1
Case 2
Default
Code block 1
break;
Code block 2
break;
Default statement
False
False

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2. Agenda What is JavaScript? Why learn JavaScript? JavaScript Fundamentals

3. Introduction To JavaScript

4. What is JavaScript? Web pages more interactive Interpreted language Interpreter Runs on the client’s computer JavaScript is a scripting language that allows you to implement complex things on web pages.

5. JavaScript Stats

6. What Can JavaScript do? Web application Website Games Smart watches

7. JavaScript Framework AngularJS ReactJS Meteor jQuery

8. The Big Picture – HTML, CSS & JavaScript HTML CSS JavaScript

9. Top Websites Built Using JavaScript

10. Benefits Of JavaScript Easy-peezy Easy to learn Speed

11. Benefits of JavaScript Provides rich framework Makes web pages more interactive

12. Benefits Of JavaScript No compilation needed Platform Independent

13. JavaScript Fundamentals

14. Variables Memory location Variable name Variable is a name given to a memory location which acts as a container for storing data. Syntax: 1 let age; 2 age = 22;

15. Constants Constants are fixed values that do not change during execution time. Syntax: 1 2 const mybirthday; mybirthday = ‘03.08.1996’ ; Examples of constants

16. Primitive Data Types Strings Boolean TRUE FALSE Numbers Null Undefined

17. Reference Data Types - Objects An object is a standalone entity, with properties and type. Syntax: 1 let object1 = { }; Name Age Eye-colour

18. Reference Data Types - Arrays 0 1 2 3 4 An array is a data structure that contains a list of elements. These elements are all of the same data type, such as an integer or string. Syntax: 1 2 let arr[ ]; let arr = new Array( ) ;

19. Reference Data Types - Functions A function is a block of organized, reusable code that is used to perform a single, related action. Functions Predefined Functions User Defined Functions Syntax: 1 2 3 function greetings( ) { alert(‘ Hello everyone! ‘); } name of the function enter parameters here

20. Conditional Statements Conditional statement is a set of rules performed if a certain condition is met. It is like an ‘If-Then’ statement. (IF a condition is met, THEN an action is performed) If Statement If code End Start True Condition False Exit Syntax: 1 2 3 if(condition) { statement; }

21. Conditional Statements Conditional statement is a set of rules performed if a certain condition is met. It is like an ‘If-Then’ statement. (IF a condition is met, THEN an action is performed) Else If Statement If code End Start True Condition False Else if code Syntax: 1 2 3 4 5 6 if(condition) { statement a; } else (condition) { statement b; }

22. Loops Loops are used to repeat a specific block until some end condition is met. Loops do whilewhilefor Start Conditional Code Condition False True End loop

23. While Loop While the condition is true, the code within the loop is executed. Start Conditional Code End True False Condition While loop Syntax: 1 2 3 while(condition) { loop code; }

24. Do While Loop This loop will first execute the code, then check the condition and while the condition holds true, execute repeatedly. Start Conditional Code End True False Condition Do while loop Syntax: 1 2 3 4 do { loop code; } while(condition);

25. For Loop Repeatedly executes the loop code while a given condition is TRUE. It tests the condition before executing the loop body. For loop Start Execute Statement (s) End Next item from sequence If no more itemsItem from sequenceSyntax: 1 2 3 for(begin; condition; step) { loop code; }

26. Switch Case The switch statement is used to perform different actions based on different conditions. Syntax: 1 2 3 4 5 6 7 8 9 10 switch(expression) { case 1 : code block 1 break; case 2 : code block 2 break; default : code block 3 } Start Switch expression End Case 1 Case 2 Default Code block 1 break; Code block 2 break; Default statement False False

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