ruan65

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

ruan65

import 'package:flutter/material.dart';

class TransparentRoundedRectangle extends StatelessWidget {
  const TransparentRoundedRectangle({super.key});

  @override
  Widget build(BuildContext context) {
    return CustomPaint(
      painter: CandlePainter(),
    );

ruan65

  int maxInteger = double.maxFinite.toInt();
  const maxInteger2 = -1 >>> 1;  // 1111 ... 1111 >>> 0111 ... 1111
  print(maxInteger);
  print(maxInteger2);
  print(-maxInteger);
  print(-maxInteger2);

ruan65

{
	"Flutter App Example Scaffold": {
		"scope": "dart",
		"prefix": "fsapp",
		"body": [
			"import 'package:flutter/material.dart';",
			"",
			"void main() {",
			"  runApp(MaterialApp(",
			"title: 'Flutter Demo',",

ruan65

extension CompactMap<T> on Iterable<T?> {
  Iterable<T> compactMap<E>([E? Function(T?)? transform]) =>
      map(transform ?? (e) => e).where((e) => e != null).cast();
}

ruan65

extension Normalize on num {
  num normalized(
    num selfRangeMin,
    num selfRangeMax, [
    num normalizedRangeMin = 0.0,
    num normalizedRangeMax = 1.0,
  ]) =>
      (normalizedRangeMax - normalizedRangeMin) *
          ((this - selfRangeMin) / (selfRangeMax - selfRangeMin)) +
      normalizedRangeMin;

ruan65

void main() async {
  
  Future.delayed(Duration(milliseconds: 500)).then((_) {
    print('hi');
  });
  print('hello');
  
  await Future.delayed(Duration(milliseconds: 1000));
  print('hi');

ruan65

/// copyright 2020, roipeker

class FormValidations {
  static String email(String val) {
    val = val.trim();
    if (val.isEmpty) return 'Email cant be empty';
    if (val.length <= 4) return 'Email is too short';
    if (!val.isEmail) return 'Invalid email';
    return null;
  }

ruan65

import 'dart:io';

import 'package:grpc/grpc.dart';

import 'generated/umka.pbgrpc.dart';

class UmkaTerminalClient {
  late final ClientChannel channel;
  late final UmkaClient stub;

ruan65

import 'dart:math';

import 'package:grpc/src/server/call.dart';
import 'package:grpc/grpc.dart' as grpc;
import 'package:umka/questions_db_driver.dart';

import 'generated/umka.pbgrpc.dart';

class UmkaService extends UmkaServiceBase {