摘要：
In lodash, you can use 'mixin' to create a new function on lodash object. import * as _ from 'lodash'; _.chunk([1, 2, 3, 4], 2); // [[1,2], [3,4]] _.m 阅读全文
posted @ 2020-10-09 01:19
Zhentiw
阅读(92)
评论(0)
推荐(0)
摘要：
Instead of first checking to see if a record already exists within your table, we can do a on conflict do update. In this command, we can ether insert 阅读全文
posted @ 2020-10-08 02:25
Zhentiw
阅读(171)
评论(0)
推荐(0)
摘要：
The useDebugValue hook will not effect your user experience but is instead aimed at improving the developer experience. When building your own custom 阅读全文
posted @ 2020-10-08 02:19
Zhentiw
阅读(136)
评论(0)
推荐(0)
摘要：
function reverse(str: string): string; function reverse<T>(arr: T[]): T[]; function reverse<T>(stringOrArray: string | T[]): string | T[] { if (typeof 阅读全文
posted @ 2020-10-06 18:20
Zhentiw
阅读(155)
评论(0)
推荐(0)
摘要：
class Pizza { constructor(private name: string, private price: number) {} } class List<T> { private list: T[]; addItem(item: T): void { this.list.push 阅读全文
posted @ 2020-10-06 18:14
Zhentiw
阅读(81)
评论(0)
推荐(0)
摘要：
Discriminated (Tagged) Unions means that for two or more similar types, we have one common prop which can differentiate individual. interface Order { 阅读全文
posted @ 2020-10-06 15:27
Zhentiw
阅读(279)
评论(0)
推荐(0)
摘要：
interface Order { id: string; amount: number; currency: string; } interface Stripe { card: string; cvc: string; } interface PayPal { email: string; } 阅读全文
posted @ 2020-10-06 15:18
Zhentiw
阅读(79)
评论(0)
推荐(0)
摘要：
When we use class extend in typescript: // app.ts export default class App {} // bar.ts export defulat class Bar extends App { } After compiling, we w 阅读全文
posted @ 2020-10-05 18:29
Zhentiw
阅读(82)
评论(0)
推荐(0)
摘要：
tsconfig.json: { "compilerOptions": { "target": "es5", "lib": ["es6", "dom"], "module": "commonjs", "outDir": "dist", "noUnusedLocals": true, "noUnuse 阅读全文
posted @ 2020-10-05 18:11
Zhentiw
阅读(106)
评论(0)
推荐(0)
摘要：
Sometime if our tsconfig.json looks like this; { "compilerOptions": { "target": "es5", "module": "commonjs", "outDir": "dist" } } We can get all kinds 阅读全文
posted @ 2020-10-05 17:46
Zhentiw
阅读(197)
评论(0)
推荐(0)
浙公网安备 33010602011771号