The life of TB

void main(List args) { print("Index of pending: ${Status.pending.index}"); print("Index of pending: ${Status.rejected.index}"); // To get a list of all enumerated values you use the values constants of the enum like this: print(""); print("---List of enum values---"); List statuses = Status.values; for (var status in statuses) { print(status); } // To access the name of an enumerated value, you ..

Dart 2024. 1. 19. 11:24

import 'dart:math'; void main(List args) { // Generate Random Number Random random = Random(); num rNumInt = random.nextInt(10); print("Generated Random Number\n between 0 to 9 =>\n $rNumInt"); print(""); num rNumDouble = random.nextDouble(); print("Generated Random Number\n between 0.01 to 1.00 =>\n $rNumDouble"); print(""); // Generate Random Number Between Any Number // fomula: min + Random()..

Dart 2024. 1. 16. 10:15

void main(List args) { // How To Get Date And Time print(DateTime.now()); print(""); // Get Year, Month, Day Of Datetime In Dart DateTime dt = DateTime.now(); print("year: ${dt.year}"); print("month: ${dt.month}"); print("day: ${dt.day}"); print("hour: ${dt.hour}"); print("minutes: ${dt.minute}"); print("second: ${dt.second}"); print(""); // How To Convert String To DateTime String myDateInStrin..

Dart 2024. 1. 16. 08:18

void main(List args) { var p1 = new Point(x: 10, y: 20); var p2 = new Point(x: 100, y: 200); print(Point.counter); // 2 } /* A field is bound to a specific instance of a class. It means that each instance of the class has separate field values. So when you change the field value of one instance, it doesn’t affect other instances. Because of this, a field is often called an instance variable or i..

Dart 2024. 1. 10. 23:19

import 'dart:io'; void main(List args) { // Open file Directory tempDir = Directory.systemTemp; File file = File('${tempDir.path}/test.txt'); // Read File In Dart String text = file.readAsStringSync(); print(text); // Get File Information print('File path: ${file.path}'); print('File absolute path: ${file.absolute.path}'); print('File size: ${file.lengthSync()} bytes'); print('Last modified: ${f..

Dart 2024. 1. 5. 20:41

// Why Is Exception Handling Needed? // Exceptions provide the means to separate the details of // what to do when something out of the ordinary happens // from the main logic of a program. // Therefore, exceptions must be handled to prevent // the application from unexpected termination. // Here are some reasons why exception handling is necessary: // To avoid abnormal termination of the progra..

Dart 2024. 1. 5. 20:40

void main(List args) { Map m1 = {}; m1[1] = 'red'; m1[2] = 'green'; m1[3] = 'blue'; print(m1.values.last); // Map은 중복 키를 허용하지 않기 때문에 // 내용 교체하려면 삭제 후 추가를 해야 한다. // 그래서 .update 메서드를 제공한다. m1.update(3, (value) => 'black', ifAbsent:() => 'newColor'); m1.update(4, (value) => 'black', ifAbsent:() => 'newColor'); print(m1); } // 결과 blue {1: red, 2: green, 3: black, 4: newColor} void main(List args) { ..

Dart 2024. 1. 5. 13:47

void main(List args) { var uniqueNums = {1, 1, 2, 2, 3, 3, 4, 5}; print(uniqueNums); print(uniqueNums.contains(1)); // Difference In Set Set fruits1 = {"Apple", "Orange", "Mango"}; Set fruits2 = {"Apple", "Grapes", "Banana"}; final differenceSet = fruits1.difference(fruits2); print(differenceSet); // Intersection Method In Dart Set fruits3 = {"Apple", "Orange", "Mango"}; Set fruits4 = {"Apple", ..

Dart 2024. 1. 4. 22:08