![Angular 2, Angular 2…
нас и [НАШ_FRAMEWORK]
неплохо кормит](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-15-320.jpg)
![function getData(keepIdentity) {
var oldData = data;
if (!keepIdentity) { // reset for each tick
data = [];
for (var i = 1; i <= ENV.rows; i++) {
data.push({ … });
data.push({ … });
}
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-45-320.jpg)
![@NgModule({
imports: [WorkerAppModule],
bootstrap: [AppComponent],
declarations: [AppComponent]
})
class WebWorkerModule {}
export function main() {
enableProdMode();
platformWorkerAppDynamic().bootstrapModule(WebWorkerModule);
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-59-320.jpg)
![@NgModule({
imports: [WorkerAppModule],
bootstrap: [AppComponent],
declarations: [AppComponent]
})
class WebWorkerModule {}
export function main() {
enableProdMode();
platformWorkerAppDynamic().bootstrapModule(WebWorkerModule);
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-60-320.jpg)
![// very simplified version of actual source
class ApplicationRef {
changeDetectorRefs:ChangeDetectorRef[] = [];
constructor(private zone: NgZone) {
this.zone.onTurnDone
.subscribe(() => {
this.zone.run(() => this.tick()
});
}
tick() {
this.changeDetectorRefs
.forEach((ref) => ref.detectChanges());
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-87-320.jpg)
![// very simplified version of actual source
class ApplicationRef {
changeDetectorRefs:ChangeDetectorRef[] = [];
constructor(private zone: NgZone) {
this.zone.onTurnDone
.subscribe(() => {
this.zone.run(() => this.tick()
});
}
tick() {
this.changeDetectorRefs
.forEach((ref) => ref.detectChanges());
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-88-320.jpg)
![// very simplified version of actual source
class ApplicationRef {
changeDetectorRefs:ChangeDetectorRef[] = [];
constructor(private zone: NgZone) {
this.zone.onTurnDone
.subscribe(() => {
this.zone.run(() => this.tick()
});
}
tick() {
this.changeDetectorRefs
.forEach((ref) => ref.detectChanges());
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-89-320.jpg)
![// very simplified version of actual source
class ApplicationRef {
changeDetectorRefs:ChangeDetectorRef[] = [];
constructor(private zone: NgZone) {
this.zone.onTurnDone
.subscribe(() => {
this.zone.run(() => this.tick()
});
}
tick() {
this.changeDetectorRefs
.forEach((ref) => ref.detectChanges());
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-90-320.jpg)
![@Component({
template: '<v-card [vData]="vData"></v-card>'
})
class VCardApp {
constructor() {
this.vData = {
name: 'Christoph Burgdorf',
email: 'christoph@thoughtram.io'
}
}
changeData() {
this.vData.name = 'Pascal Precht';
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-92-320.jpg)
![@Component({
template: '<v-card [vData]="vData"></v-card>'
})
class VCardApp {
constructor() {
this.vData = {
name: 'Christoph Burgdorf',
email: 'christoph@thoughtram.io'
}
}
changeData() {
this.vData = { name: 'Pascal Precht' };
}
}](https://image.slidesharecdn.com/speedlimits-angular2-161109113213/85/Angular-2-94-320.jpg)
Превышаем скоростные лимиты с Angular 2
- 1. Превышаем скоростные лимиты с Angular 2 Алексей Охрименко - IPONWEB
- 8. 8
- 9. последствия превышения скорости (в реальной жизни)
- 10. последствия превышения скорости* * - поищите в Google Image - 4-ый результат
- 11. Всегда успеете…
- 12. А где тогда скорость превышать?
- 15. Angular 2, Angular 2… нас и [НАШ_FRAMEWORK] неплохо кормит
- 17. А что значит «скорость»?
- 23. Скорость загрузки Скорость работы Размер LazyLoading Обьем работы Производительность
- 24. Скорость загрузки Скорость работы Размер LazyLoading Обьем работы Производительность Память
- 27. Скорость работы
- 30. Кол-во перерисовок в секунду (больше лучше) Angular 1 Angular 2 React Elm 0 9 18 27 36
- 31. Наша цель … 90 RR
- 32. Кол-во перерисовок в секунду (больше лучше) Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 33. Старая версия Angular 2
- 34. Alpha 44
- 35. Alpha 44 —> v2.1.2
- 36. Alpha 44 Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 37. v2.1.2 Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 38. v2.1.2 Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 39. На самом деле все просто…
- 40. Angular 2 Performance Checklist
- 41. import {enableProdMode} from '@angular/core'; enableProdMode();
- 43. Alpha 44 Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 44. v2.1.2 + enableProdMod() Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 45. function getData(keepIdentity) { var oldData = data; if (!keepIdentity) { // reset for each tick data = []; for (var i = 1; i <= ENV.rows; i++) { data.push({ … }); data.push({ … }); } } }
- 46. @Page({ template: ` <div *ngFor="let post of posts;trackBy:identify"> {{post.data}} </div> ` }) export class SomeConponent { identify(index,item){ return post.id } }
- 47. @Page({ template: ` <div *ngFor="let post of posts;trackBy:identify"> {{post.data}} </div> ` }) export class SomeConponent { identify(index,item){ return post.id } }
- 48. v2.1.2 + enableProdMod() Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 49. trackBy Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 50. AOT Ahead Of Time template compilation
- 53. Angular CLI ng serve ——aot ng build ——aot
- 54. trackBy Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 55. AOT Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 56. WebWorkers
- 57. import {bootstrapWorkerUi} from '@angular/platform-webworker'; import {enableProdMode} from '@angular/core'; export function main() { enableProdMode(); bootstrapWorkerUi('loader.js'); }
- 58. import {bootstrapWorkerUi} from '@angular/platform-webworker'; import {enableProdMode} from '@angular/core'; export function main() { enableProdMode(); bootstrapWorkerUi('loader.js'); }
- 59. @NgModule({ imports: [WorkerAppModule], bootstrap: [AppComponent], declarations: [AppComponent] }) class WebWorkerModule {} export function main() { enableProdMode(); platformWorkerAppDynamic().bootstrapModule(WebWorkerModule); }
- 60. @NgModule({ imports: [WorkerAppModule], bootstrap: [AppComponent], declarations: [AppComponent] }) class WebWorkerModule {} export function main() { enableProdMode(); platformWorkerAppDynamic().bootstrapModule(WebWorkerModule); }
- 61. AOT Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 62. webWorkers Angular 2 Target 0 10 20 30 40 50 60 70 80 90
- 64. Кол-во перерисовок в секунду (больше лучше) Angular 1 Angular 2 React Elm 0 10 20 30 40 50 60 70 80 90
- 65. Еще раз • enableProd() • trackBy • AOT • WebWorkers
- 67. Scott Hanselman
- 68. ZoneJs
- 70. const http = require('http'); const hostname = '127.0.0.1'; const port = 3000; const server = http.createServer((req, res) => { res.statusCode = 200; res.setHeader('Content-Type', 'text/plain'); res.end('Hello World'); }); server.listen(port, hostname, () => { console.log(`Server running at http://${hostname}:${port}/`); });
- 72. process.on('uncaughtException', (err) => { console.log(`Caught exception: ${err}`); });
- 74. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); } setTimeout(someCallback, 0);
- 75. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); } setTimeout(someCallback, 0);
- 76. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); } setTimeout(someCallback, 0);
- 77. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); } setTimeout(someCallback, 0);
- 78. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); // TRUE } setTimeout(someCallback, 0);
- 79. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); } setTimeout(someCallback, 0);
- 80. Zone.current.fork({}).run(function () { Zone.current.inTheZone = true; setTimeout(someCallback, 0); }); function someCallback() { console.log(Zone.current.inTheZone); // FALSE } setTimeout(someCallback, 0);
- 81. Change Detection
- 87. // very simplified version of actual source class ApplicationRef { changeDetectorRefs:ChangeDetectorRef[] = []; constructor(private zone: NgZone) { this.zone.onTurnDone .subscribe(() => { this.zone.run(() => this.tick() }); } tick() { this.changeDetectorRefs .forEach((ref) => ref.detectChanges()); } }
- 88. // very simplified version of actual source class ApplicationRef { changeDetectorRefs:ChangeDetectorRef[] = []; constructor(private zone: NgZone) { this.zone.onTurnDone .subscribe(() => { this.zone.run(() => this.tick() }); } tick() { this.changeDetectorRefs .forEach((ref) => ref.detectChanges()); } }
- 89. // very simplified version of actual source class ApplicationRef { changeDetectorRefs:ChangeDetectorRef[] = []; constructor(private zone: NgZone) { this.zone.onTurnDone .subscribe(() => { this.zone.run(() => this.tick() }); } tick() { this.changeDetectorRefs .forEach((ref) => ref.detectChanges()); } }
- 90. // very simplified version of actual source class ApplicationRef { changeDetectorRefs:ChangeDetectorRef[] = []; constructor(private zone: NgZone) { this.zone.onTurnDone .subscribe(() => { this.zone.run(() => this.tick() }); } tick() { this.changeDetectorRefs .forEach((ref) => ref.detectChanges()); } }
- 92. @Component({ template: '<v-card [vData]="vData"></v-card>' }) class VCardApp { constructor() { this.vData = { name: 'Christoph Burgdorf', email: '[email protected]' } } changeData() { this.vData.name = 'Pascal Precht'; } }
- 93. @Component({ template: ` <h2>{{vData.name}}</h2> <span>{{vData.email}}</span> ` }) class VCardCmp { @Input() vData; }
- 94. @Component({ template: '<v-card [vData]="vData"></v-card>' }) class VCardApp { constructor() { this.vData = { name: 'Christoph Burgdorf', email: '[email protected]' } } changeData() { this.vData = { name: 'Pascal Precht' }; } }
- 95. @Component({ template: ` <h2>{{vData.name}}</h2> <span>{{vData.email}}</span> `, changeDetection: ChangeDetectionStrategy.OnPush }) class VCardCmp { @Input() vData; }
- 97. Управляем Zone и CD
- 99. processOutsideAngularZone() { this.progress = 0; this.zone.runOutsideAngular(() => { this.increaseProgress(() => { this.zone.run(() => { console.log('Outside Done!'); }); }); }); }
- 100. processOutsideAngularZone() { this.progress = 0; this.zone.runOutsideAngular(() => { this.increaseProgress(() => { this.zone.run(() => { console.log('Outside Done!'); }); }); }); }
- 102. ngOnInit() { this.addItemStream.subscribe(() => { this.counter++; // application state changed this.cd.markForCheck(); // marks path }) } }
- 103. А можно как-то попроще?
- 104. Redux
- 105. ng2-redux ngrx/store
- 106. Mobx
- 107. ng2-mobx
- 109. Улучшаем Perceived Performance •Увеличивая реальную производительность
- 110. Улучшаем Perceived Performance •Увеличивая реальную производительность •Замедляя реальную производительность
- 111. Улучшаем Perceived Performance •Увеличивая реальную производительность •Замедляя реальную производительность •Грамотно перераспределяя нагрузку и ресурсы
- 114. this.form.valueChanges .filter((value) => this.form.valid) .switchMap((value) => { return http.post(‘/api’, value) });
- 115. this.form.valueChanges .debounce(500) .filter((value) => this.form.valid) .switchMap((value) => { return http.post(‘/api’, value) });
- 116. this.form.valueChanges .debounce(500) .distinctUntilChanged() .filter((value) => this.form.valid) .switchMap((value) => { return http.post(‘/api’, value) });
- 117. this.form.valueChanges .debounce(500) .distinctUntilChanged() .filter((value) => this.form.valid) .switchMap((value) => { return http.post(‘/api’, value) }).retryWhen(attempts => attempts .zip(Observable.range(1, 3), (_, i) => i) .flatMap((i: number) => { return Observable.timer(i * 1000); }) ))