Learn JavaScript
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JavaScript Training Courses

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🔅 JavaScript: Hashmaps

🌐 Author: Tiffany Graves
🔰 Level: Intermediate

Duration: 34m

🌀 Learn what hashmaps are, as well as how and why hashmaps are used.


📗 Topics: JavaScript

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Ex_Files_JavaScript_Hashmaps.zip
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📦 Exercise Files
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🔰 Filtering and Modifying Array Elements in JavaScript

You may want to filter out certain elements while modifying the remaining elements in an array.
In JavaScript, this can be accomplished in the following ways:


1. Using filter and map methods together.
2. Use the reduce method to achieve both tasks in a single step.
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🔰 Type: Unknown in TypeScript

Using the unknown type promotes type safety, prevents errors, fosters cleaner code, and aids gradual TypeScript adoption.
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🔰 Learn JavaScript in 60 Minutes: The Ultimate Beginner Course

This JavaScript crash course for beginners is the perfect starting point if you want to learn JavaScript in one hour. You'll go from understanding JavaScript syntax, variables, data types, if statements, loops, and functions.

Whether you're just starting out or need a refresher, this beginner-friendly JavaScript tutorial covers everything you need to start coding with JavaScript.

You'll learn about JavaScript DOM manipulation, functions and more — all explained in a clear and practical way. This video is part of the full JavaScript course and gives you a solid foundation for front-end web development. Learn JavaScript fast, build real things, and prepare for more advanced JavaScript projects.

⏱️ Timestamps
00:00:00 What is JavaScript?
00:02:43 Installation / Tools / Basic Setup
00:06:38 First Steps in JavaScript
00:16:42 JavaScript Basics
00:42:20 If Statements
00:50:40 Loops
00:56:27 Functions
01:05:48 DOM
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🔰 Conditional Types for Flexible Logic

Use Conditional Types to create type-safe APIs, dynamic utility types, and ensure precise type behavior in complex systems.
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🔰 Map vs forEach
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