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試圖潛入具有角度1的一些經驗和有一些謎題的角2。來自共享模塊的指令是不可見的
我做了一個共享的模塊:
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { Constants } from './injectables/constants';
import { Utils } from "./injectables/utils";
import { HighlightDirective } from "./directives/highlight";
@NgModule({
imports: [ CommonModule ],
declarations: [ HighlightDirective ],
providers: [ Constants, Utils ],
exports: [ HighlightDirective ]
})
export class VCommonModule { }
糾正我,如果我錯了,但我只理解爲指令,管道和部件,這裏需要出口?在包含此模塊以導入我的AppModule後,可以立即使用服務(Injectables)?所以我做了:
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { HttpModule } from '@angular/http';
import { VCommonModule } from './common/module';
import { FormsModule } from "@angular/forms";
import { AppComponent } from './faq/components/app';
import { SearchComponent } from './faq/components/search';
import { ArticleComponent } from "./faq/components/article";
import { TopResultsComponent } from "./faq/components/topResults";
import { AjaxService } from "./faq/injectables/ajaxService";
import './rxjs-operators';
@NgModule({
imports: [ BrowserModule, FormsModule, HttpModule, VCommonModule ],
declarations: [ AppComponent, SearchComponent, ArticleComponent, TopResultsComponent ],
providers: [ AjaxService ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
但是當我試圖用[亮點]指令在我的組件洞察力的AppModule它讓我看到了一個錯誤,VCommonModule
zone.js:388 Unhandled Promise rejection: Template parse errors:
Can't bind to 'highlight' since it isn't a known property of 'span'. (" <br/>
<span [innerHTML]="article.Content__c"
[ERROR ->][highlight]
keywords="test"></span> <!-- [innerHTML]="article.Content__c | "): [email protected]:26 ; Zone: <root> ; Task: Promise.then ; Value: Error:
服務似乎好我加後的作品它們作爲提供商:[常量,的Utils]我的組件的
import {Directive, Input, ElementRef, Renderer, OnChanges} from "@angular/core";
@Directive({
selector: '[highlight]'
})
export class HighlightDirective implements OnChanges{
@Input()
keywords:string;
highlightClass: string = 'highLight';
constructor(
private elementRef:ElementRef,
private renderer:Renderer) {
}
replacer(match, item) {
return `<span class="${this.highlightClass}">${match}</span>`;
}
tokenize(keywords) {
keywords = keywords.replace(new RegExp(',$','g'), '').split(',');
return keywords.map((keyword) => {
return '\\b'+keyword.replace(new RegExp('^ | $','g'), '')+'\\b';
});
}
ngOnChanges() {
if (this.keywords) {
var tokenized = this.tokenize(this.keywords);
var regex = new RegExp(tokenized.join('|'), 'gmi');
var html = this.elementRef.nativeElement.innerHTML.replace(regex, (match, item) => {
return this.replacer(match, item);
});
this.renderer.setElementProperty(this.elementRef.nativeElement, 'innerHTML', html);
}
}
}
PS:角版本2.1.2
你可以添加你的'HighlightDirective'類的實現? –
確定匹配,完成 –
刪除模板中'highlight'周圍的括號;它應該被標記爲正常屬性。 – cartant