sandrig

GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.

So below I made a list of leetcode problems that are as close to grokking problems as possible.

Pattern: Sliding Window

• https://leetcode.com/problems/maximum-subarray/ # Close enough
• https://leetcode.com/problems/minimum-size-subarray-sum/

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[
  {
    "key": "cmd+o cmd+p",
    "command": "workbench.action.showCommands"
  },
  {
    "key": "cmd+x",
    "command": "workbench.view.extensions"
  },
  {

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{
  "window.zoomLevel": 2,
  "workbench.colorTheme": "Aura Dracula Spirit (Soft)",
  "workbench.iconTheme": "material-icon-theme",
  "material-icon-theme.hidesExplorerArrows": true,
  "workbench.tree.renderIndentGuides": "none",
  "workbench.sideBar.location": "right",
  "workbench.activityBar.visible": false,
  "workbench.statusBar.visible": false,
  "workbench.editor.showTabs": false,

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/**
 * Returns a Promise which resolves with a value in form of a tuple.
 * @param promiseFn A Promise to resolve as a tuple.
 * @returns Promise A Promise which resolves to a tuple of [error, ...results]
 */
export function tuple (promise) {
  return promise
    .then((...results) => [null, ...results])
    .catch(error => [error])
}

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{
  "name": "to-be-added",
  "version": "0.0.0",
  "sideEffects": false,
  "exports": {
    ".": {
      "import": "./dist-esm/bundle.min.mjs",
      "require": "./dist-cjs/bundle.min.cjs"
    },
    "./server": "./server/index.js"

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Features

🔥 Blazing fast builds
😇 CommonJS bundle
🌲 .mjs bundle
✨ .d.ts bundle + type-checking
🧐 Source maps

Install

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Про токены, JSON Web Tokens (JWT), аутентификацию и авторизацию. Token-Based Authentication

Основы:

Аутентификация(authentication, от греч. αὐθεντικός [authentikos] – реальный, подлинный; от αὐθέντης [authentes] – автор) - это процесс проверки учётных данных пользователя (логин/пароль). Проверка подлинности пользователя путём сравнения введённого им логина/пароля с данными сохранёнными в базе данных.

Авторизация(authorization — разрешение, уполномочивание) - это проверка прав пользователя на доступ к определенным ресурсам.

Например после аутентификации юзер sasha получает право обращатся и получать от ресурса "super.com/vip" некие данные. Во время обращения юзера sasha к ресурсу vip система авторизации проверит имеет ли право юзер обращатся к этому ресурсу (проще говоря переходить по неким разрешенным ссылкам)

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import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";
import * as z from "zod";

const schema = z.object({
  email: z.string().email().min(2),
  password: z.string().min(6)
});

export default function RhfFormWithZod() {

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components/ColorMode.tsx

import {Box, LightMode, DarkMode} from "@chakra-ui/react"

export type ColorModeProps = {
  mode: "light" | "dark"
  background?: string
  children: React.ReactNode
}

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name: Security audit
on:
  push:
    paths:
      - '**/Cargo.toml'
      - '**/Cargo.lock'
jobs:
  security_audit:
    runs-on: ubuntu-latest
    steps: