Blasanka

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );

Blasanka

// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override

Blasanka

import 'dart:convert';

import 'package:flutter/material.dart';

final Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

Blasanka

void main() {
  String text = "Test #/first1hashtag test #/second2hashtag test.";
  RegExp exp = new RegExp(r"\B#\/");
  exp.allMatches(text).forEach((match){
    print(match.group(0));
    text = text.replaceAll(match.group(0), "");
  });
  print(text);
  
  String text2 = "Test #/first1hashtag test #/second2hashtag test.";

Blasanka

void main() {
  var locations = {
    {
      'country': 'Egypt',
      'city': 'Cairo',
      'Latitude': 30.033333,
      'Longitude': 31.233334,
      'utcOffset': 2
    },
    {

Blasanka

void main() {
  String str = "one.two";
  print(str.replaceAll(".two", ""));
  
  // or
  
  print(str.split(".").first);// split() will split from . and gives new List with separated elements.
  
  // or
  

Blasanka

void main() {
  Map parentMap = {
    'childOne': {
      'grandSon': {
        'grandGrandChild': {
          'childOne': 'John',
          'childTwo': 'Ron'
        }
      },
      'grandDaughter': {

Blasanka

void main() {
  List<Map> _pecasList = [];
  List<String> alphas = ["a", "b", "c"];

  Map<String, dynamic> newPecas = Map();

  for (String c in alphas) {
    if (c.isEmpty || c.trimLeft() == "") {
      print("Campo Vazio");
    } else {

Blasanka

void main() {
  List<String> first = ['A','B','C','D']; 
  List<String> second = ['B','D'];
  
  List<String> result = first.where((item) => !second.contains(item)).toList();
  print(result);
}

Blasanka

void main() {
  final text = """My website url: https://blasanka.github.io/
Google search using: www.google.com, social media is facebook.com, http://example.com/method?param=flutter
stackoverflow.com is my greatest website. DartPad share: https://github.com/dart-lang/dart-pad/wiki/Sharing-Guide see this example and edit it here """;

  RegExp exp = new RegExp(r'(?:(?:https?|ftp):\/\/)?[\w/\-?=%.]+\.[\w/\-?=%.]+');
  Iterable<RegExpMatch> matches = exp.allMatches(text);
  
  matches.forEach((match) {
    print(text.substring(match.start, match.end));