Course Content
The Complete Frontend Developer Roadmap
The Complete Frontend Developer Roadmap
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Lesson 1:- What is JavaScripts
Introduction to JavaScripts
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Lesson 2:- JavaScript Course for Beginners – Your First Step to Web Development
JavaScript Course for Beginners
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Lesson 3:-Object-oriented Programming in JavaScript: Made Super Simple
Object-oriented Programming in JavaScript
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Lesson 4:- JavaScript Arrays
JavaScript Arrays
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Less0n 5:- JavaScript Functions
JavaScript Functions
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Lesson 6:- JavaScript Strings
JavaScript Strings
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Lesson 7:- JavaScript if else
JavaScript if else
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Lesson 8:- JavaScript Loops
JavaScript Loops
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Lessons 9:- JavaScript Factory Functions
JavaScript Factory Functions
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Lesson 10:- JavaScript Constructor Functions
JavaScript Constructor Functions
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Lesson 11:- JavaScript Getters and Setters
JavaScript Getters and Setters
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Lesson 12:- JavaScript Value vs Reference Types
JavaScript Value vs Reference Types
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Lesson 13:- JavaScript Scope (Local vs Global)
JavaScript Scope (Local vs Global)
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Lesson 14:- JavaScript Let vs Var vs Constant
JavaScript Let vs Var vs Constant
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Lesson 15:- JavaScript Cloning an Object
JavaScript Cloning an Object
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Lesson 16:- JavaScript this Keyword
JavaScript this Keyword
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Lesson 17:- JavaScript Template Literals
JavaScript Template Literals
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Lesson 18:- JavaScript Array Filter
JavaScript Array Filter
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Lesson 19:- JavaScript Array Map
JavaScript Array Map
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Lesson 20:- JavaScript Array Reduce
JavaScript Array Reduce
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Extra Lesson 1:-Learn Modern JavaScript in 1 Hour
Learn Modern JavaScript in 1 Hour
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Extra Lesson 2:- JavaScript Unit Testing Tutorial for Beginners
JavaScript Unit Testing Tutorial for Beginners
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Extra Lesson 3:- React Testing for Beginners
React Testing for Beginners
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9 Reasons People Hate JavaScript
9 Reasons People Hate JavaScript
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JavaScripts for Beginners
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07:24
About Lesson

JavaScript Strings

  • Text Representation: Strings in JavaScript are used to represent textual data. They are enclosed within either single quotes (‘…’), double quotes (“…”), or backticks (“).

  • Examples:

    JavaScript

     
    const greeting = "Hello, world!";
    const name = 'John Doe';
    const multilineString = `This is a
    multiline string`; 
    
  • String Methods: JavaScript provides a rich set of methods for manipulating strings:

    • length: Returns the number of characters in the string.
    • toUpperCase(): Converts the string to uppercase.
    • toLowerCase(): Converts the string to lowercase.
    • indexOf(): Finds the index of the first occurrence of a substring.
    • slice(): Extracts a portion of the string.
    • concat(): Concatenates two or more strings.
    • split(): Splits a string into an array of substrings.
    • replace(): Replaces occurrences of a specified substring with another string.
    • trim(): Removes whitespace from both ends of the string.
  • Template Literals: Backticks (“) allow for embedded expressions within strings:

    JavaScript

     
    const name = "Alice";
    const message = `Hello, ${name}!`; // Output: "Hello, Alice!"
    

Strings are fundamental in JavaScript, used for displaying text, handling user input, and building dynamic content within web pages.