import { Component, OnInit, Input, Output, EventEmitter } from '@angular/core';
const options = [{
  value: 'zhejiang',
  label: 'Zhejiang',
  children: [{
    value: 'hangzhou',
    label: 'Hangzhou',
    children: [{
      value: 'xihu',
      label: 'West Lake',
      isLeaf: true
    }],
  }, {
    value: 'ningbo',
    label: 'Ningbo',
    isLeaf: true
  }],
}, {
  value: 'jiangsu',
  label: 'Jiangsu',
  children: [{
    value: 'nanjing',
    label: 'Nanjing',
    children: [{
      value: 'zhonghuamen',
      label: 'Zhong Hua Men',
      isLeaf: true
    }],
  }],
}];
@Component({
    selector: 'cm-cascader-doc-3',
    templateUrl: './cascader-doc-3.component.html',
    styleUrls: ['./cascader-doc-3.component.css']
})

export class CascaderDoc3Component implements OnInit{
	_options = options;

  _value: any[] = null;

  _text = 'Unselect';

  _console(value:any) {
    console.log(value);
  }

  onSelectionChange(selectedOptions: any[]): void {
    this._text = selectedOptions.map(o => o.label).join(', ');
  }
   constructor() {}
  ngOnInit() {}
  }