You cannot use Expanded in Column if it has a parent SingleChildScrollView because When you use column it tries to be in screen height and when use expanded inside, The column will allocate remaining space to the child of the expanded widget, Now if you use SingleChildScrollView It will try to expand(by direction, vertically in … Read more
This is how I do it using join() in List: main(List<String> arguments) { List cities = [‘NY’, ‘LA’, ‘Tokyo’]; String s = cities.join(‘, ‘); print(s); }
All microtasks are executed before any other Futures/Timers. This means that you will want to schedule a microtask when you want to complete a small computation asynchronously as soon as possible. void main() { Future(() => print(‘future 1’)); Future(() => print(‘future 2’)); // Microtasks will be executed before futures. Future.microtask(() => print(‘microtask 1’)); Future.microtask(() => … Read more
Instead of if(T is String) it should be if(_val is String) The is operator is used as a type-guard at run-time which operates on identifiers (variables). In these cases, compilers, for the most part, will tell you something along the lines of T refers to a type but is being used as a value. Note … Read more
This will get you the current url. Uri.base From the docs: When running in a browser this is the current URL of the current page (from window.location.href). https://api.flutter.dev/flutter/dart-core/Uri/base.html
One or some of your packages (mostly likely the path_provider) had path as transitive dependency before you upgraded to their latest version, so you were able to import path directly in your code. But the latest version no longer has dependency on path, so you will need to add this to your pubspec.yaml dependencies section … Read more
Running on M1 mac, these two commands solved my problem. $ arch -arm64 brew install llvm $ sudo gem install ffi
Let’s say you have an object in which you want to change some properties. One way to do is by changing each property at a time like object.prop1 = x object.prop2 = y and so on. This will go cumbersome if you have more than few properties to change. Then copyWith method comes handy. This … Read more
I’m not sure if I follow you here — do you want this? var symbole = “”” *<br /> ***<br /> *****<br /> *******<br /> *********<br />”””; var element03 = query(‘#exercice03’); element03.innerHTML = symbole; I just added the break lines So as Matt B said, the output of print() is differently formatted than HTML on … Read more