[Angular] ngFor filter

	//HTML
	<input type="text" [(ngModel)]="_num"/>
	<ul>
	<li *ngFor="let item of numList | numFilter:_num">
	{{item.po}}
	</li>
	</ul>
	<p>_num:{{_num}}</p>

view raw component.html hosted with ❤ by GitHub

	//TS
	import { Component, OnInit } from '@angular/core';
	import { FormsModule } from '@angular/forms';
	import { FormBuilder, FormGroup, FormControl, Validators } from '@angular/forms';
	import { NumFilterPipe } from '../num-filter.pipe';
	@Component({
	selector: 'app-num',
	templateUrl: './num.component.html',
	styleUrls: ['./num.component.css']
	})
	export class NumComponent implements OnInit {
	_num;
	numList = [
	{po:'500123'},
	{po:'94938'},
	{po:'7857'}
	];
	constructor() { }
	ngOnInit() {
	}
	}

view raw ngFor_pipe.ts hosted with ❤ by GitHub

	//ng g pipe numFilter
	//num-filter.pipe.ts
	import { Pipe, PipeTransform } from '@angular/core';
	@Pipe({
	name: 'numFilter'
	})
	export class NumFilterPipe implements PipeTransform {
	transform(numList: any, _num: any): any {
	if(_num === undefined) return numList;
	return numList.filter(item => {
	console.log(item.po.includes(_num));
	return item.po.includes(_num);
	})
	}
	}

view raw num-filter.pipe.ts hosted with ❤ by GitHub

解決 electron 安裝失敗問題(Mac)

npm install -g electron 出現Error

permission denied, mkdir '/usr/local/lib/node_modules/electron/dist'


使用下列安裝就順利裝上去惹＠＠

sudo npm install -g electron --unsafe-perm=true --allow-root