Add README.md

Author: loiane

README.md

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+Learning JavaScript Data Structures and Algorithms
+===================================================
+
+Source code of **Learning JavaScript Data Structures and Algorithms** book.
+
+# Chapters
+
+## Part 1: Introduction
+
+* 01: Introducing Data Structures and Algorithms in JavaScript
+* 02: Understanding Big O Notation
+
+## Part 2: Data Structures
+
+* 03: Arrays
+* 04: Stacks
+* 05: Queues and Deques
+* 06: Linked Lists
+* 07: Sets
+* 08: Dictionaries and Hashes
+* 09: Recursion
+* 10: Trees
+* 11: Binary Heap and Heap Sort
+* 12: Tries
+* 13: Graphs
+
+## Part 3: Algorithms
+
+* 14: Sorting Algorithms
+* 15: Searching and Shuffling Algorithms
+* 16: String Algorithms
+* 17: Math Algorithms
+* 18: Algorithm Designs and Techniques
+
+# Project Structure
+
+You can find the source code organized by chapter under the `src` folder.
+
+*Each file has the `.js` and the `.ts` extension, so you get both the JavaScript and the Typescript versions of the source code.*
+
+*Each data structure and algorithm from parts 2 and 3 also have a `_test_`* folder where you can find the respective `Jest` test cases.
+
+## How to use this repository
+
+**Install all dependencies**
+
+```
+npm install
+```
+
+**Run all tests**
+
+```
+npm test
+```
+
+**Run a particular example**
+
+```
+cd src/01-intro
+node 01-hello-world.js
+```
+
+## 💻 Tecnologies
+
+* JavaScript
+* TypeScript
+* Jest (tests)
+
+Happy Coding!