The document is an introduction to Dart programming, covering its features such as classes, lists, and async programming. It highlights the language's capabilities for creating scalable applications, performance aspects, and the existence of libraries. Additionally, it outlines resources for further engagement with the Dart community and roadmap milestones for the language's development.

1. DART
Yohan BESCHI – Développeur Java
@yohanbeschi
+Yohan Beschi
2013-02-13 Introduction à DART 1

2. Pourquoi ce talk ?
CellTable<User> table = new CellTable<User>(); }
});
TextColumn<User> idColumn = new TextColumn<User>() { columnSortHandler.setComparator(firstNameColumn,
@Override new Comparator<Tester.User>() {
public String getValue(User user) { public int compare(User o1, User o2) {
return user.id; if (o1 == o2) {
} return 0;
}; }
TextColumn<User> firstNameColumn = new TextColumn<User>() { if (o1 != null) {
@Override return (o2 != null) ? o1.firstName.compareTo(o2.firstName) : 1;
public String getValue(User user) { }
return user.firstName; return -1;
} }
}; });
columnSortHandler.setComparator(lasteNameColumn,
TextColumn<User> lastNameColumn = new TextColumn<User>() { new Comparator<Tester.User>() {
@Override public int compare(User o1, User o2) {
public String getValue(User user) { if (o1 == o2) {
return user.lastName; return 0;
} }
};
if (o1 != null) {
TextColumn<User> ageColumn = new TextColumn<User>() { return (o2 != null) ? o1.lasteName.compareTo(o2.lasteName) : 1;
@Override }
public String getValue(User user) { return -1;
return user.age; }
} });
}; columnSortHandler.setComparator(ageColumn,
new Comparator<Tester.User>() {
idColumn.setSortable(true); public int compare(User o1, User o2) {
firstNameColumn.setSortable(true); if (o1 == o2) {
lastNameColumn.setSortable(true); return 0;
ageColumn.setSortable(true); }
table.addColumn(idColumn, "ID"); if (o1 != null) {
table.addColumn(firstNameColumn, "First name"); return (o2 != null) ? o1.age.compareTo(o2.age) : 1;
table.addColumn(lastNameColumn, "Lats name"); }
table.addColumn(ageColumn, "Age"); return -1;
}
ListDataProvider<User> dataProvider = new ListDataProvider<User>(); });
dataProvider.addDataDisplay(table); table.addColumnSortHandler(columnSortHandler);
table.getColumnSortList().push(firstNameColumn);
List<User> list = dataProvider.getList();
for (User user : USERS) {
list.add(user);
}
ListHandler<User> columnSortHandler = new ListHandler<Tester.User>(list);
columnSortHandler.setComparator(idColumn,
new Comparator<Tester.User>() {
public int compare(User o1, User o2) {
if (o1 == o2) {
return 0;
}
if (o1 != null) {
return (o2 != null) ? o1.id.compareTo(o2.id) : 1;
}
return -1;
2013-02-13 Introduction à DART 2

3. Pourquoi ce talk ?
CellTable<User> table = new CellTable<User>(); }
});
TextColumn<User> idColumn = new TextColumn<User>() { columnSortHandler.setComparator(firstNameColumn,
@Override new Comparator<Tester.User>() {
public String getValue(User user) { public int compare(User o1, User o2) {
return user.id; if (o1 == o2) {
} return 0;
}; }
TextColumn<User> firstNameColumn = new TextColumn<User>() { if (o1 != null) {
@Override return (o2 != null) ? o1.firstName.compareTo(o2.firstName) : 1;
public String getValue(User user) { }
return user.firstName; return -1;
} }
}; });
columnSortHandler.setComparator(lasteNameColumn,
TextColumn<User> lastNameColumn = new TextColumn<User>() { new Comparator<Tester.User>() {
@Override public int compare(User o1, User o2) {
public String getValue(User user) { if (o1 == o2) {
return user.lastName; return 0;
} }
};
if (o1 != null) {
TextColumn<User> ageColumn = new TextColumn<User>() { return (o2 != null) ? o1.lasteName.compareTo(o2.lasteName) : 1;
@Override }
public String getValue(User user) { return -1;
return user.age; }
} });
}; columnSortHandler.setComparator(ageColumn,
new Comparator<Tester.User>() {
idColumn.setSortable(true); public int compare(User o1, User o2) {
firstNameColumn.setSortable(true); if (o1 == o2) {
lastNameColumn.setSortable(true); return 0;
ageColumn.setSortable(true); }
table.addColumn(idColumn, "ID"); if (o1 != null) {
table.addColumn(firstNameColumn, "First name"); return (o2 != null) ? o1.age.compareTo(o2.age) : 1;
table.addColumn(lastNameColumn, "Lats name"); }
table.addColumn(ageColumn, "Age"); return -1;
}
ListDataProvider<User> dataProvider = new ListDataProvider<User>(); });
dataProvider.addDataDisplay(table); table.addColumnSortHandler(columnSortHandler);
table.getColumnSortList().push(firstNameColumn);
List<User> list = dataProvider.getList();
for (User user : USERS) {
list.add(user);
}
ListHandler<User> columnSortHandler = new ListHandler<Tester.User>(list);
columnSortHandler.setComparator(idColumn,
new Comparator<Tester.User>() {
public int compare(User o1, User o2) {
if (o1 == o2) {
return 0;
}
if (o1 != null) {
return (o2 != null) ? o1.id.compareTo(o2.id) : 1;
}
return -1;
2013-02-13 Introduction à DART 3

4. Pourquoi ce talk ?
Table<User> table = new Table (sorting:true)
..addColumn('ID', new TextCell((User o) => o.id))
..addColumn('First name', new TextCell((User o) => o.firstName))
..addColumn('Last name', new TextCell((User o) => o.lastName))
..addColumn('Age', new TextCell((User o) => o.age))
..setData(objs);
2013-02-13 Introduction à DART 4

5. Pourquoi ce talk ?
Table<User> table = new Table (sorting:true)
..addColumn('ID', new TextCell((User o) => o.id))
..addColumn('First name', new TextCell((User o) => o.firstName))
..addColumn('Last name', new TextCell((User o) => o.lastName))
..addColumn('Age', new TextCell((User o) => o.age))
..setData(objs);
6 lignes
2013-02-13 Introduction à DART 5

6. Le gagnant pour moi ?
2013-02-13 Introduction à DART 6

7. Il était une fois…
2013-02-13 Introduction à DART 7

8. Productivité du programmeur
2013-02-13 Introduction à DART 8

9. Application évolutive
2013-02-13 Introduction à DART 9

10. Rapidité d'exécution
2013-02-13 Introduction à DART 10

11. Performance au démarrage
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12. L'arrivée de DART
⦿ Open Source (BSD)
⦿ Structuré
⦿ Anti-Révolutionnaire
⦿ Dans la mouvance des frameworks JS
⦿ N’a pas pour objectif de casser le web
2013-02-13 Introduction à DART 12

13. Classes abstraites
abstract class Validatable {
}
2013-02-13 Introduction à DART 13

14. Classes abstraites
abstract class Validatable {
List<Object> valuesToValidate();
}
2013-02-13 Introduction à DART 14

15. Classes abstraites
abstract class Validator<T extends Validatable> {
}
2013-02-13 Introduction à DART 15

16. Classes abstraites
abstract class Validator<T extends Validatable> {
bool validate(T object) {
}
}
2013-02-13 Introduction à DART 16

17. Classes abstraites
abstract class Validator<T extends Validatable> {
bool validate(T object) {
for (Object obj in object.valuesToValidate()) {
}
}
}
2013-02-13 Introduction à DART 17

18. Classes abstraites
abstract class Validator<T extends Validatable> {
bool validate(T object) {
for (Object obj in object.valuesToValidate()) {
if (StringUtils.isEmpty(obj.toString())) {
}
}
}
}
2013-02-13 Introduction à DART 18

19. Classes abstraites
abstract class Validator<T extends Validatable> {
bool validate(T object) {
for (Object obj in object.valuesToValidate()) {
if (StringUtils.isEmpty(obj.toString())) {
return false;
}
}
return true;
}
}
2013-02-13 Introduction à DART 19

20. Classes concrètes
class User {
}
2013-02-13 Introduction à DART 20

21. Classes concrètes
class User implements Validatable {
}
2013-02-13 Introduction à DART 21

22. Classes concrètes
class User implements Validatable {
String username;
String password;
}
2013-02-13 Introduction à DART 22

23. Classes concrètes
class User implements Validatable {
String username;
String password;
User(this.username, this.password);
}
2013-02-13 Introduction à DART 23

24. Classes concrètes
class User implements Validatable {
String username;
String password;
User(this.username, this.password);
List<Object> valuesToValidate() {
return [username, password];
}
}
2013-02-13 Introduction à DART 24

25. Mais ce n’est pas tout
⦿ Mixins
⦿ Optionnellement typé
⦿ Gouverné par des fonctions de haut niveau
⦿ Mono processus
2013-02-13 Introduction à DART 25

26. Librairies disponibles
⦿ Core ⦿ TU et Mocks
⦿ HTML ⦿ Math
⦿ Async ⦿ Logging
⦿ IO ⦿ URI
⦿ Crypto ⦿ I18N
⦿ JSON ⦿ etc.
⦿ Mirrors
⦿ UTF
2013-02-13 Introduction à DART 26

27. Futures / Callback Hell - JS
getWinningNumber( (int result1) {
updateResult(1, result1);
getWinningNumber( (int result2) {
updateResult(2, result2);
getWinningNumber( (int result3) {
updateResult(3, result3);
getWinningNumber( (int result4) {
updateResult(4, result4);
getWinningNumber( (int result5) {
updateResult(5, result5);
getWinningNumber( (int result6) {
updateResult(6, result6);
//snip getResultsString()
});
});
});
});
});
});
2013-02-13 Introduction à DART 27

28. Futures / Callback Hell - Dart
void main() {
getFutureWinningNumber()
.then(next(1))
.then(next(2))
.then(next(3))
.then(next(4))
.then(next(5))
.then(next(6));
}
Function next(int position) {
return (int result) {
updateResult(position, result);
return getFutureWinningNumber();
};
}
2013-02-13 Introduction à DART 28

29. Isolates
2013-02-13 Introduction à DART 29

30. Machines Virtuelles
2013-02-13 Introduction à DART 30

31. Dartium
2013-02-13 Introduction à DART 31

32. DartEditor
2013-02-13 Introduction à DART 32

33. Plugins
2013-02-13 Introduction à DART 33

34. dart2js
2013-02-13 Introduction à DART 34

35. dart2js
2013-02-13 Introduction à DART 35

36. dart2js
⦿ Cible HTML5
⦿ Tree Shaking
⦿ Agrégation/Minification
⦿ Optimisation
2013-02-13 Introduction à DART 36

37. pub
2013-02-13 Introduction à DART 37

38. pub
pubspec.yaml
name: pacifista_rocks
description: The best application in the whole world
version: 0.0.1
dependencies:
great_lib: any
2013-02-13 Introduction à DART 38

39. dartdoc
/// This is a single-line documentation comment.
/**
* This is a multi-line documentation comment.
* To generate the documentation:
* $ dartdoc <filename>
*/
void main() {
}
2013-02-13 Introduction à DART 39

40. dartdoc
2013-02-13 Introduction à DART 40

41. Utilisation
⦿ Création de sites Single-Page
⦿ Création d'application complètes
⦿ Jeux HTML
2013-02-13 Introduction à DART 41

42. Roadmap
Aujourd'hui : M2 Mi-fevrier : M3 Été : V1 !
2013-02-13 Introduction à DART 42

43. Aller plus loin
DartLangFR
⦿ Mailing-list : dartlangfr (https://groups.google.com/forum/?fromgroups=&hl=en#!forum/dartlangfr)
⦿ Google+ : DartlangFR (https://plus.google.com/u/0/communities/104813951711720144450)
⦿ Twitter : @dartlang_fr
⦿ Blog : dartlangfr.net
DartLang
⦿ Site officiel : www.dartlang.org
⦿ Mailing-list : dartlang
(https://groups.google.com/a/dartlang.org/forum/?fromgroups&hl=en#!forum/misc)
⦿ Google+ : Dart (https://plus.google.com/+dartlang)
⦿ Google+ : Dartisans (https://plus.google.com/communities/114566943291919232850)
⦿ Twitter : @dart_lang
⦿ Blog : blog.dartwatch.com
⦿ Newsletter : Dart weekly
2013-02-13 Introduction à DART 43

44. Des questions ?
2013-02-13 Introduction à DART 44