React Native – How to work with form (1)? Formik & Yup
What does Formik do? Track form state Handles form submission Handles validation and error messages Install Usage template How to reset form after submit? How […]
Month: May 2020
React -Algorithm
How to force useEffect to be called every time component is called? Example Solution By this way, every time you are back to parent component […]
iOS – How to develop app with background modes (1)?
What does Apple documentation talk about background modes? Apple DocumentationIn background mode, app should do as little as possible, and preferably nothing Which use cases […]
JavaScript – Algorithm (1)
Basic – Syntaxes What is “truthy”? What is the difference between null and undefined? null value: null, type: object undefined value: null, type: undefined What’s […]
Cordova – How to communicate with native Android?
How to pass data from Cordova to native Android? JS side Android native side
iOS – Compare with Android
Project Configuration Dependency Management gradle = CocoaPod Configuration file Android AndroidManifest.xml iOS info.plist Resources Android res folder with XML files, image files iOS App screen […]
iOS – How to use CocoaPods in an iOS project?
Install CocoaPods to Mac how-to-install-xcode-homebrew-git-rvm-ruby-on-mac https://gorails.com/setup/macos/13-ventura Create pod file Add library Add Bluecap into Pod file Install *.xcworkspace file is created From now on, open xcworkspace […]
Android – Development setup
How to debug a device over wifi? How to Transfer File from Android device to Mac? How to set sdk path? How to generate debug […]
JavaScript – How to write code cleaner with Async/ Await?
How to use Async/ Await with async function having callback? Not using Async/ Await Using Async/ Await How to use Promise in “reduce”? You have […]
JavaScript – Is Set better than Array?
What are differences between Set and Array? Arrays can have duplicate values but Sets can’t Array is ordered by index. Set uses keys and elements […]