https://github.com/fatimazbouj/jsfundamentals

JavaScript édition 2022 (les bases)
https://github.com/fatimazbouj/jsfundamentals

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JavaScript édition 2022 (les bases)

• Host: GitHub
• URL: https://github.com/fatimazbouj/jsfundamentals
• Owner: fatimazbouj
• Created: 2024-04-28T22:59:59.000Z (9 months ago)
• Default Branch: src
• Last Pushed: 2024-05-06T09:53:32.000Z (8 months ago)
• Last Synced: 2024-05-06T11:02:12.522Z (8 months ago)
• Size: 2.04 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# JsFundamentals

 JavaScript édition 2022 (les bases)

 ## Extentions for VS code:

 - Live server

 - Material Icon Theme

 - Monokai ++ (theme)

## Javascript data types:

 - Number : 1,2,3,100, 3.14

 - String : "Hello wolrd" , "Fatima zahra c'est mon prénom"

 - Boolean : false , true

 - Null : To say that variable is with no value

 - Undefined : To say the variable is not yet defined

 - Object : Complex data structure, arrays , dates, literals

 - Sybmbol : used with object

## Primitive & reference types:

### Primitive types:

- numbers

- strings

- booleans

- null

- undefined

- symbols

### Reference types:

All type of objects:

- object literals

- arrays

- functions

- dates

- all other objects

when we create a primitive type like a string or number and we assign it to a variable, that value is stored on something called the **stack** which refers to the stack of different values in the memory, and they can be accessed quickly when we need to use them, but the space inside the **stack** is quite limited, so when we create a reference type like an object literal or array that doesn't stored in the **stack** but in something else called **heap** , because the **heap** has more space available so it can hold bigger and more complex types like objects.

When the primitive value has stored in a variable it adds that value to the stack and it locks the variable name to it as an accessor to that value.

When the reference value has stored in a variable like an object , it adds it to the heap, and then it adds a pointer to that object on the stack.

Code example is in the `object.js` file