1| console.log
( 'JavaScript Demystified: Unlocking the Secrets of Web Development' );
JavaScript is a widely-used programming language that enables dynamic and interactive elements on websites, making them more engaging and responsive to user interactions. It plays a crucial role in modern web development by allowing developers to create dynamic web pages, handle user events, manipulate and update content in real-time, and build web applications with enhanced functionality.
2| console.log( 'CodeMastering the Script: Unveiling the Core of JavaScript' );
Variables
var x = 400;
var y = 20;
var w = x + y;
w output: 420
Variables in JavaScript are used to store and manipulate data. They are containers that hold values, which can be of various types like strings, numbers, or arrays
Strings
var name = 'John';
var space = ' ';
var surName = 'Lenon';
input: name + space + surName
output: John Lenon
Strings are sequences of characters enclosed in single or double quotation marks. They represent textual data and can be manipulated using various string methods like concatenation, slicing, or replacing
Numbers
(5 + 3);
// Addition: 8
(5 - 3);
// Subtraction: 2
(5 * 3);
// Multiplication: 15
(5 / 3);
// Division: 1.6666666666666667
Numbers in JavaScript can be integers or decimals. They are used for mathematical operations and calculations. JavaScript supports basic arithmetic operations like addition, subtraction, multiplication, and division
Take a look !
Arrays
let fruits = ['apple', 'banana', 'orange'];
fruits Output:
['apple', 'banana', 'orange']
fruits[0]
['apple']
// Accessing the first element: 'apple'
Arrays are ordered collections of values that can hold multiple items of different types. They are enclosed in square brackets and elements are separated by commas. Arrays provide methods to manipulate and access their elements, such as adding, removing, or sorting them
Functions
function greet(name) {
let surName = ' Lenon';
console.log(
'Hello, ' + name + surName + '!');
}
greet('John');
// Output: Hello, John Lenon!
Functions in JavaScript are reusable blocks of code that perform specific tasks. They help in organizing and encapsulating logic. Functions can take parameters, perform operations, and return values. They are a fundamental building block for code modularity and reusability
3| console.log( 'Navigate with Precision: Control Statements and Looping in JavaScript' );
Control Statements
Control statements in JavaScript, such as if-else and switch, allow you to make decisions and execute different blocks of code based on specified conditions.
Loops
Control statements in JavaScript, such as if-else and switch, allow you to make decisions and execute different blocks of code based on specified conditions.
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