Etienne Dldc etienne-dldc
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| import { z } from "zod"; | |
| type Route<Result, Params> = { | |
| __params: Params; | |
| path: (params: Params) => string; | |
| schema: z.Schema<Result>; | |
| }; | |
| type RoutesBase = Record<string, Route<any, any>>; |
etienne-dldc
/ drawShape.ts
Created
September 21, 2021 13:20
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| type Rectangle = { | |
| kind: "rectangle"; | |
| width: number; | |
| height: number; | |
| }; | |
| type Circle = { | |
| kind: "circle"; | |
| radius: number; | |
| }; |
etienne-dldc
/ extract-next-routes.ts
Created
May 5, 2021 12:22
Extract routes in NextJS project to a TS file
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| import * as glob from "glob"; | |
| import * as path from "path"; | |
| import * as fse from "fs-extra"; | |
| import * as prettier from "prettier"; | |
| const PARAM_REG = /^\[(.+)\]$/; | |
| type PageObj = { [key: string]: PageObj }; | |
| type PathItem = { type: "param" | "static"; name: string }; |
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| function Subscription() { | |
| const subs: Array<() => void> = []; | |
| return { | |
| subscribe(cb: () => void) { | |
| subs.push(cb); | |
| // return unsub | |
| return () => { | |
| const index = subs.indexOf(cb); |
etienne-dldc
/ randomSequenceOfUniqueColor.ts
Created
October 19, 2020 08:48
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| function randomSequenceOfUnique(intermediateOffset: number, seedBase = 1) { | |
| // from https://preshing.com/20121224/how-to-generate-a-sequence-of-unique-random-integers/ | |
| let index = permuteQPR(permuteQPR(seedBase) + 0x682f01); | |
| function permuteQPR(x: number) { | |
| const prime = 16777199; | |
| const halfPrime = 8388599; | |
| if (x >= prime) return x; // The 17 integers out of range are mapped to themselves. | |
| // squaring can cause exceeding 2^53 |
etienne-dldc
/ async-await.js
Created
February 24, 2020 18:08
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| async function fetchAsObjectURL(url) { | |
| const response = await fetch(url); | |
| const blob = await response.blob(); | |
| return URL.createObjectURL(blob); | |
| } | |
| fetchAsObjectURL('https://jsonplaceholder.typicode.com/todos/1'); |
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| function notNull<T>(val: T | null): T { | |
| if (val === null) { | |
| throw new Error(`Invariant: value should not be null`); | |
| } | |
| return val; | |
| } | |
| function notNil<T>(val: T | null | undefined): T { | |
| if (val === null || val === undefined) { | |
| throw new Error(`Invariant: value should not be null | undefined`); |
etienne-dldc
/ timer.ts
Created
January 20, 2020 17:27
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| const [start] = useState(Date.now()); | |
| const [, setRandomNum] = useState(0); | |
| const diff = Date.now() - start; | |
| useEffect(() => { | |
| const current = diff % 1000; | |
| const time = 1000 - current; | |
| const timer = setTimeout(() => { | |
| setRandomNum(Math.random()); |
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| # redirect non www | |
| <% | |
| if (s.publicDomain.match(/^(?!(www\.)).+$/)) { | |
| %> | |
| server { | |
| <% | |
| if (!s.forceSsl) { | |
| %> | |
| listen 80; | |
| <% |
etienne-dldc
/ do_not_reproduce_at_home.ts
Last active
July 8, 2021 08:42
A calculator made with Typescript type system only, because why not ¯\_(ツ)_/¯
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| type Bit = 0 | 1; | |
| type Byte = [Bit, Bit, Bit, Bit, Bit, Bit]; | |
| type Decimal = | |
| | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | |
| | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | |
| | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | |
| | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 |
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