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https://github.com/makiato1999/meta-backend-notes
Notes about Coursera course Meta Back-End Developer Professional Certificate by Xiaoran Xie
https://github.com/makiato1999/meta-backend-notes
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Notes about Coursera course Meta Back-End Developer Professional Certificate by Xiaoran Xie
- Host: GitHub
- URL: https://github.com/makiato1999/meta-backend-notes
- Owner: Makiato1999
- Created: 2022-11-12T08:27:57.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2023-01-14T20:14:59.000Z (almost 2 years ago)
- Last Synced: 2024-11-13T14:04:35.103Z (about 2 months ago)
- Language: Python
- Homepage:
- Size: 287 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Meta Back-End Developer Professional Certificate
_provided by Meta & Coursera_
#### Table of Contents
1. [Introduction to Backend Development](#anchor_1)
2. [Programming in Python](#anchor_2)
- [Object Oriented Programming](#anchor_21)
3. [Version Control](#anchor_3)
- [git commands](#anchor_31)
4. [Introduction to Databases for Back-End Development](#anchor_4)
## Introduction to Backend Development
1. HTML, CSS
2. UI framworks and libraries, Bootstrap
- breakpoint
- infix(indicate the breakpoint in Bootstrap CSS rules)
- bootstrap modifiers(add a CSS class to change the visual style of components)
- [grid system](https://getbootstrap.com/docs/4.0/layout/grid/)
- containers, row, col col-12/col-lg-6(different screen size)
- [cards](https://getbootstrap.com/docs/4.0/components/card/)
- [badge](https://getbootstrap.com/docs/4.0/components/badge/)(can insert between span tag)
- [alert](https://getbootstrap.com/docs/4.0/components/alerts/)
- [bootstrap web](https://getbootstrap.com/docs/5.2/getting-started/introduction/)
bootstrap.min.css, bootstrap.min.js
3. Into React
- SAP(single application page)
- Virtual DOM(Document Object Model)
- component hierarchy
## Programming in Python
1. install Python/change python version
- [Installing Python path for MacOS](https://github.com/Makiato1999/Coursera-Backend-Development/blob/main/2.%20Programming%20in%20Python/PythonPath.md)
2. type casting
3. String
- "I am a {major} student in {university}".format(major="Shawn", university="UofM")
- "I am a {0} student in {1}".format("Shawn", "UofM")
- "I am a {} student in {}".format("Shawn", "UofM")
4. loop
- for index, item in enumerate(func):
5. data structure
- list [], tuple ()
- list can be modified(append, insert, pop), but tuple is immutable
- set
- is a collection with no duplicated
- set is not a sequence, it doesn't contain order index, set can not search with index
- dictionary
- key:value
```
for key, value in my_dict.items():
print(str(key) + ":" + value)
```
- args
```
def sum(*args):
for x in args:
sum += x
sum(1, 3, 4, 6, 7)
```
- kwargs
```
def sum(**kwargs):
for k, v in kwargs.items():
sum += v
sum(coffee:2.9, tea:1.6, sanwich:4.3)
```
6. read/write file
- ```with open(filename, "r") as file:```
- use 'with' operate file, otherwise need to use close
7. :smiling_face_with_tear: I got COVID this week and i have to suspend the studying. The fever made me feel headache, and sore throat felt like swallowing a blade down my throat, please protect yourself. TAKE CARE.
8. recursion
- reverse String
- slice function(Using Indexing Syntax)
```
# str[start:stop:step]
temop_string = string[::-1]
```
[more string slice() details](https://www.tutorialsteacher.com/python/slice-method#:~:text=Python%20slice()%20function,and%20__len__()%20methods.)
- recursion
```
def reverse_str(str):
if len(str) == 0:
return str
else:
return reverse_str(str[1::]) + str[0]
```
9. Map & filter
- map() returns every item in an iterable, including 'None', 'False', etc.
- same as map, but filter() only returns values if True
1. comprehension
- list comprehension
- ```[ for x in if ]```
- dictionary comprehension
- ```dict = { key:value for key, value in if }```
- Generator comprehension
- similiar to list, but use ()
- zip()
- [Week3-Assignment can use zip(), good idea even it makes code complex](https://github.com/Makiato1999/Coursera-Backend-Development/blob/main/2.%20Programming%20in%20Python/Week3-Assignment/zip.png)
- refer to [comprehensions.py](https://github.com/Makiato1999/Coursera-Backend-Development/blob/main/2.%20Programming%20in%20Python/Week3-Assignment/comprehensions.py)
2. Object Oriented Programming
- almost same as Java
- encapsulation, polymorphism, inheritance and abstraction
- constructor
```
def __init__(self, newData):
self.data = newData
```
- Inheritance and Multiple Inheritance
- abstract
```
from abc import ABC
class abstractClass(ABC):
pass
```
if there is abstract method, then
```
from abc import ABC, abstractmethod
class abstractClass(ABC):
@abstractmethod
def someAbstractMethod(self):
pass
```
- override
- refer to [bank.py](https://github.com/Makiato1999/Coursera-Backend-Development/blob/main/2.%20Programming%20in%20Python/Week3-Assignment-abstract/bank.py)
3. module
- build-in
```
import sys
```
- not build-in
```
import sys
sys.path.insert(1, r"C:\Users\Madecraft Author\Programs\Workplace")
import trial
```
- others, such as```from json import *```
- refer to [jsongenerator.py](https://github.com/Makiato1999/Coursera-Backend-Development/blob/main/2.%20Programming%20in%20Python/Week4-Assignment-import/jsongenerator.py)
4. web dev
- full stack(Django)
- microframework(Flask)
- asynchronous
5. testing
- unit(PyTest)
refer to [test_spellcheck.py](https://github.com/Makiato1999/Coursera-Backend-Development/blob/main/2.%20Programming%20in%20Python/Week4-Assignment-unitTesting/test_spellcheck.py)
- integration
- system
- acceptance
6. test-driven development(TDD)
## Version Control
1. workflow
- Continuous Integration
- Continuous Delivery
- Continuous Deployment
2. bash
- cd, Change Directory
- ls - List command used for showing the content of a directory.
- rm - Remove command used for removing a file or a directory
- mv - Used to move files or folders to another location
- touch - Allows creating of a new empty file or to upate a timestamp on a file
- cp - Used to make a copy of a file or foldler
- mkdir - Make a new directory
- pwd - Print work directory, shows the current location in the shell
- cat - Allows reading or concatenation of a file
- less - Displays the contents of a file one page at a time.
- grep - Global regular expression, allows for searching contents of files or folders
3. pip
- ```cat file.txt | wc -w```
4. redirection
5. grep
6. correct workflow
- from the working directory to the staging area(git add), then to committed files(git commit), remote repository(git push)
8. How to use simple git commands
- login Github, ```gh auth login```
- if u want to clone repository, ```gh repo clone /```
- if repository is exist,
- open terminal and find the location of the clone repository
- ```git clone -b branch``` + urlLink
- check if there is the file you need
- create a new branch, ```git checkout -b yourNewBranchName```, go back to main branch, ```git checkout main```
- check current branches, ```git status```
- change untracked file to tracked, add file in staging status, ```git add helloWorld.java``` / ```git add *```
- restore file from tracked to untracked, go back to last step, ```git restore --stage helloWorld.java```
- ```git commit -m "add helloWorld.java to main branch..."```
- ```git push -u origin yourBranchName```
- updated local content from remote repository, ```git pull```
## Introduction to Databases for Back-End Development
1. initialize
- Data Definition Language
- Data Manipulation Language
- Data Query Language
2. SQL