Rex Chiang[Database] Race conditionA race condition is a type of bug that occurs when multiple transactions (threads or processes) access a shared resource simultaneously…Jun 1, 2023Jun 1, 2023
Rex Chiang[Python] Variable scopesThe Python scope concept is generally presented using a rule known as the LEGB rule.Apr 30, 2023Apr 30, 2023
Rex Chiang[Python] GIL (Global Interpreter Lock)In CPython, the GIL (Global Interpreter Lock) is a mutex that protects access to Python objects, preventing multiple threads from executing…Apr 8, 2023Apr 8, 2023
Rex Chiang[Database] Types of IndexesAn index is a structure within database that is used to quickly retrieve specific rows from a table. An index contains keys built from one…Feb 20, 2023Feb 20, 2023
Rex Chiang[Pytest] MarkerMarkers are used to set various features or attributes to tests, and can use related API to set metadata on tests.Feb 5, 2023Feb 5, 2023
Rex Chiang[Pytest] FixtureFixtures are functions that run before or after tests, like setup or teardown. Fixtures are used for data configuration, initialization…Feb 5, 2023Feb 5, 2023
Rex Chiang[Django_Rest_Framework] Dynamic serializer fieldsDynamic fields in serializer can retrieve the required fields from the model, and speed up the serializing if the query doesn’t need to…Jul 18, 2022Jul 18, 2022
Rex Chiang[Django_Rest_Framework] Eager loadingStraightforward usage of the Django REST Framework and its nested serializers can kill performance of API endpoints. The database is…Jul 17, 2022Jul 17, 2022
![[Database] Race condition](https://miro.medium.com/v2/resize:fill:160:106/1*RoHZG5m-mh4R_3IlE0FNTg.png)
![[Database] Race condition](https://miro.medium.com/v2/resize:fill:320:214/1*RoHZG5m-mh4R_3IlE0FNTg.png)
![[Python] Variable scopes](https://miro.medium.com/v2/resize:fill:160:106/1*JKTJC4nI_wgqJXDaohFdtA.png)
![[Python] Variable scopes](https://miro.medium.com/v2/resize:fill:320:214/1*JKTJC4nI_wgqJXDaohFdtA.png)
![[Data Structure] Types of Trees](https://miro.medium.com/v2/resize:fill:160:106/1*bvgAWT_z8wa4xhvklP2Iqw.png)
![[Data Structure] Types of Trees](https://miro.medium.com/v2/resize:fill:320:214/1*bvgAWT_z8wa4xhvklP2Iqw.png)
