Dart and Flutter Flutter move screen up on the keyboard Scaffold widget has persistentFooterButton property. When we assign widgets there they are hidden under the keyboard. re... 2021.08.30 Dart and Flutter
JavaScript/TypeScript TypeScript – Using never type in switch case TypeScript offers never data type for values that never occur. I've never seen it in my work but I found it useful for s... 2021.08.26 JavaScript/TypeScript
Dart and Flutter Flutter – Retaining current view state When using PageView and moving to another page and coming back to the original page, its state is clear. I just wanted t... 2021.08.24 Dart and Flutter
Dart and Flutter Flutter Set value from parent widget I wanted to call a function from the parent widget to clear the current value of the child widget. To do that, we need t... 2021.08.22 Dart and Flutter
Dart and Flutter Extended widget doesn’t solve a RenderFlex overflowed error I faced RenderFlex overflowed error while I was implementing Flutter app. I could eventually solve the problem by using ... 2021.08.20 Dart and Flutter
Dart and Flutter Flutter – How to add label to Divider widget Flutter offers Divider widget but it is very simple one and doesn't offer label. To add label text we need to use Row wi... 2021.08.18 Dart and Flutter
JavaScript/TypeScript Testing a function specified in callback that cannot be triggered in test Don't you have a good idea to write a test of the logic specified in a callback function? Isn't it possible to control t... 2021.08.16 JavaScript/TypeScript
Dart and Flutter Dart – how to assign int/String values to enum Dart supports only the simplest case on enum and its index always starts from 0. However, we often want to assign values... 2021.08.14 Dart and Flutter
Dart and Flutter Dart – Understanding Class Initialization Order I wrote simple code to understand class initialization order. Dart offers late keyword to check null at runtime instead ... 2021.08.12 Dart and Flutter
Dart and Flutter Dart compiler doesn’t recognize if a variable is non-null value Dart compiler doesn't recognize even though null check logic exists before using the variable. It took me a while to und... 2021.08.10 Dart and Flutter