我想使用" fast-json-patch" Angular 2应用程序中的库(https://github.com/Starcounter-Jack/JSON-Patch)。
我尝试过添加:
'fast-json-patch': 'vendor/fast-json-patch/dist/json-patch-duplex.min.js'
system-config.ts
文件中的,但在导入map
答案 0 :(得分:4)
1)安装软件包
npm install fast-json-patch --save
2)在要使用ist的组件中,导入所需的功能:
import { compare } from 'fast-json-patch';
3)要创建补丁,请将旧对象与新对象进行比较:
const patch = compare(oldObj, modifiedObj);
4)打印结果:
console.log(patch);
0:{op: "replace", path: "/firmendetails/registergericht", value: "Darmstadt xx"}
1:{op: "remove", path: "/firmendetails/handelsname"}
2:{op: "remove", path: "/firmendetails/firma"}
3:{op: "remove", path: "/firmendetails/rechtsform"}
答案 1 :(得分:-2)
这是我的system-config.ts
文件的样子:
import * as express from 'express';
import {ng2engine} from 'angular2-universal-preview';
// Angular 2
import {App} from './src/app';
let app = express();
// Express View
app.engine('.ng2.html', ng2engine);
app.set('views', __dirname);
app.set('view engine', 'ng2.html');
// static files
app.use(express.static(__dirname));
app.use('/', (req, res) => {
res.render('index', { App });
});
app.listen(3000, () => {
console.log('Listen on http://localhost:3000');
});
请添加您的代码,以便我看一下?