https://github.com/devdezzies/fundamentals-javascript

course by Kyle Simpson (Frontend Masters)
https://github.com/devdezzies/fundamentals-javascript

fundamentals javascript

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course by Kyle Simpson (Frontend Masters)

• Host: GitHub
• URL: https://github.com/devdezzies/fundamentals-javascript
• Owner: devdezzies
• Created: 2022-07-15T01:10:39.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-07-16T01:24:30.000Z (over 2 years ago)
• Last Synced: 2024-11-12T21:42:46.114Z (2 months ago)
• Topics: fundamentals, javascript
• Language: JavaScript
• Homepage:
• Size: 13.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## THREE PILLARS OF JS

1. Types/Coercion

2. Scope/Closures

3. this/Prototypes

## TYPES / COERCION

* Primitive Types

* Converting Types

* Checking Equality

1. Primitive Types 

> "In JavaScript, everything is an object"

* Undefined

* String

* Number

* Boolean

* Object

* Symbol

* null (also primitive type)

* Function (is not a primitive type just a subtype of the object type) also Array is not a primitive type

> "In JavaScript, variables don't have types, values do"

```

var v;

typeof v;  // undefined

v = "1";

typeof v;  // string

v = 2;

typeof v;  // number

v = true;

typeof v;  // boolean

v = {};

typeof v;  // object

v = Symbol();

typeof v;  // symbol

typeof doesntExist;  // undefined

var v = null;

typeof v;   // object (this is an histrorical BUG in JavaScript)

v = function(){};

typeof v;  // function

v = [1, 2, 3];

typeof v;  // object (subtype of the object there)

```

There are Fundamentals Object in JavaScript

> Use new:

* Object()

* Array()

* Function()

* Date()

* RegExp()

* Error()

> Don't use new:

* String()

* Number()

* Boolean()

## Example 

```

var yesterday = new Date("March 6, 2019");   <--- Use "new"

yesterday.toUTCString();

// Wed, 06 Mar 2019 06:00:00 GMT   

var myGPA = String(transcript.gpa);   <--- Don't use "new"

// 3.54

```

## Exercises

1. [First Exercise](https://github.com/devdezzies/Fundamentals-JavaScript/blob/main/Primer/primerExercise.md)

2. [2nd Exercise](https://github.com/devdezzies/Fundamentals-JavaScript/blob/main/FinalExercise/Instructions.md)

> TIP TO SUCCEED IN THIS COURSE: REPEAT EVERY SINGLE EXERCISE AND START IT FROM SCRATCH AND MAKE SURE YOU UNDERSTAND!

> AND YOU ALSO CAN MAKE A FEW MODIFICATIONS TO TRY AS A EXPERIMENT

**"The best way to learn JS is to get it and write it!" - Kyle Simpson**