1614562131
Readonly: TypeScript Built-in Mapped Type
Here we look at TypeScript’s built in mapped type called Readomly.
#typescript #javascript #web-development
What is GEEK
Buddha Community
1654588030
The Definitive Guide to TypeScript & Possibly The Best TypeScript Book
TypeScript Deep Dive
I've been looking at the issues that turn up commonly when people start using TypeScript. This is based on the lessons from Stack Overflow / DefinitelyTyped and general engagement with the TypeScript community. You can follow for updates and don't forget to ★ on GitHub 🌹
Reviews
- Thanks for the wonderful book. Learned a lot from it. (link)
- Its probably the Best TypeScript book out there. Good Job (link)
- Love how precise and clear the examples and explanations are! (link)
- For the low, low price of free, you get pages of pure awesomeness. Chock full of source code examples and clear, concise explanations, TypeScript Deep Dive will help you learn TypeScript development. (link)
- Just a big thank you! Best TypeScript 2 detailed explanation! (link)
- This gitbook got my project going pronto. Fluent easy read 5 stars. (link)
- I recommend the online #typescript book by @basarat you'll love it.(link)
- I've always found this by @basarat really helpful. (link)
- We must highlight TypeScript Deep Dive, an open source book.(link)
- Great online resource for learning. (link)
- Thank you for putting this book together, and for all your hard work within the TypeScript community. (link)
- TypeScript Deep Dive is one of the best technical texts I've read in a while. (link)
- Thanks @basarat for the TypeScript Deep Dive Book. Help me a lot with my first TypeScript project. (link)
- Thanks to @basarat for this great #typescript learning resource. (link)
- Guyz excellent book on Typescript(@typescriptlang) by @basarat (link)
- Leaning on the legendary @basarat's "TypeScript Deep Dive" book heavily at the moment (link)
- numTimesPointedPeopleToBasaratsTypeScriptBook++; (link)
- A book not only for typescript, a good one for deeper JavaScript knowledge as well. link
- In my new job, we're using @typescriptlang, which I am new to. This is insanely helpful huge thanks, @basarat! link
- Thank you for writing TypeScript Deep Dive. I have learned so much. link
- Loving @basarat's @typescriptlang online book basarat.gitbooks.io/typescript/# loaded with great recipes! link
- Microsoft doc is great already, but if want to "dig deeper" into TypeScript I find this book of great value link
- Thanks, this is a great book 🤓🤓 link
- Deep dive to typescript is awesome in so many levels. i find it very insightful. Thanks link
- @basarat's intro to @typescriptlang is still one of the best going (if not THE best) link
- This is sweet! So many #typescript goodies! link
Get Started
If you are here to read the book online get started.
Translations
Book is completely free so you can copy paste whatever you want without requiring permission. If you have a translation you want me to link here. Send a PR.
Other Options
You can also download one of the Epub, Mobi, or PDF formats from the actions tab by clicking on the latest build run. You will find the files in the artifacts section.
Special Thanks
All the amazing contributors 🌹
Share
Share URL: https://basarat.gitbook.io/typescript/
Author: Basarat
Source Code: https://github.com/basarat/typescript-book/
License: View license
1636213925
How to Use Mapped Types in TypeScript
In this lesson we will look at one of TypeScript's most powerful features which is #mapped #types. We will a real use case for using mapped types and demonstrate how they can be them to reduce type noise and copy paste type creation in your codebase.
1636240140
What Is The Main Difference Of TYPES Vs INTERFACES in TypeScript
TypeScript has two ways of declaring structures of your objects in the form of #types (type aliases) and #interfaces.
In this lesson we will look at the technical differences between these two, when you should use which, along with real world #TypeScript code analysis, and community thoughts
1614562131
Readonly: TypeScript Built-in Mapped Type
Here we look at TypeScript’s built in mapped type called Readomly.
#typescript #javascript #web-development
1593156510
Basic Data Types in Python | Python Web Development For Beginners
At the end of 2019, Python is one of the fastest-growing programming languages. More than 10% of developers have opted for Python development.
In the programming world, Data types play an important role. Each Variable is stored in different data types and responsible for various functions. Python had two different objects, and They are mutable and immutable objects.
Table of Contents hide
III Built-in data types in Python
Mutable objects
The Size and declared value and its sequence of the object can able to be modified called mutable objects.
Mutable Data Types are list, dict, set, byte array
Immutable objects
The Size and declared value and its sequence of the object can able to be modified.
Immutable data types are int, float, complex, String, tuples, bytes, and frozen sets.
id() and type() is used to know the Identity and data type of the object
a**=25+**85j
type**(a)**
output**:<class’complex’>**
b**={1:10,2:“Pinky”****}**
id**(b)**
output**:**238989244168
Built-in data types in Python
a**=str(“Hello python world”)****#str**
b**=int(18)****#int**
c**=float(20482.5)****#float**
d**=complex(5+85j)****#complex**
e**=list((“python”,“fast”,“growing”,“in”,2018))****#list**
f**=tuple((“python”,“easy”,“learning”))****#tuple**
g**=range(10)****#range**
h**=dict(name=“Vidu”,age=36)****#dict**
i**=set((“python”,“fast”,“growing”,“in”,2018))****#set**
j**=frozenset((“python”,“fast”,“growing”,“in”,2018))****#frozenset**
k**=bool(18)****#bool**
l**=bytes(8)****#bytes**
m**=bytearray(8)****#bytearray**
n**=memoryview(bytes(18))****#memoryview**
Numbers (int,Float,Complex)
Numbers are stored in numeric Types. when a number is assigned to a variable, Python creates Number objects.
#signed interger
age**=**18
print**(age)**
Output**:**18
Python supports 3 types of numeric data.
int (signed integers like 20, 2, 225, etc.)
float (float is used to store floating-point numbers like 9.8, 3.1444, 89.52, etc.)
complex (complex numbers like 8.94j, 4.0 + 7.3j, etc.)
A complex number contains an ordered pair, i.e., a + ib where a and b denote the real and imaginary parts respectively).
String
The string can be represented as the sequence of characters in the quotation marks. In python, to define strings we can use single, double, or triple quotes.
# String Handling
‘Hello Python’
#single (') Quoted String
“Hello Python”
# Double (") Quoted String
“”“Hello Python”“”
‘’‘Hello Python’‘’
# triple (‘’') (“”") Quoted String
In python, string handling is a straightforward task, and python provides various built-in functions and operators for representing strings.
The operator “+” is used to concatenate strings and “*” is used to repeat the string.
“Hello”+“python”
output**:****‘Hello python’**
"python "*****2
'Output : Python python ’
#python web development #data types in python #list of all python data types #python data types #python datatypes #python types #python variable type