在Angular中,可以使用ngFor指令来进行递归调用。下面是一个示例解决方法:
recursive.component.ts:
import { Component, Input } from '@angular/core';
@Component({
selector: 'app-recursive',
template: `
-
{{ item.name }}
`,
})
export class RecursiveComponent {
@Input() data: any[];
}
parent.component.ts:
import { Component } from '@angular/core';
@Component({
selector: 'app-parent',
template: `
Recursive Example
`,
})
export class ParentComponent {
data = [
{
name: 'Item 1',
children: [
{
name: 'Subitem 1.1',
children: [
{
name: 'Subsubitem 1.1.1',
children: []
},
{
name: 'Subsubitem 1.1.2',
children: []
}
]
},
{
name: 'Subitem 1.2',
children: []
}
]
},
{
name: 'Item 2',
children: []
}
];
}
app.module.ts:
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RecursiveComponent } from './recursive.component';
import { ParentComponent } from './parent.component';
@NgModule({
declarations: [
RecursiveComponent,
ParentComponent
],
imports: [
BrowserModule
],
providers: [],
bootstrap: [ParentComponent]
})
export class AppModule { }
index.html:
Angular Recursive Example
通过以上步骤,你可以在Angular应用中使用ngFor指令进行递归调用。在递归组件中,你可以使用ngIf来判断是否需要继续递归调用自身并传递子节点数据。