huozhi

// Lazy load a value and cache it from the `getter`
function lazy<T>(getter: () => T): { value: T } {
  return {
    get value() {
      const evaluated = getter()
      Object.defineProperty(this, 'value', { value: evaluated })
      return evaluated
    }
  }

huozhi

# Check if running in iTerm2 and `tmux` is available
if [[ "$TERM_PROGRAM" == "iTerm.app" ]] && command -v tmux &>/dev/null; then
  # Start a new tmux session or attach to an existing one
  if [[ -z "$TMUX" ]]; then
    tmux attach || tmux new
  fi
fi

huozhi

pnpm add next@canary react@beta react-dom@beta
pnpm add -D babel-plugin-react-compiler
echo "module.exports = {
  experimental: {
    reactCompiler: true
  },
}" > next.config.js

huozhi

#!/usr/bin/env node
import * as core from '@arethetypeswrong/core'
import { groupProblemsByKind } from '@arethetypeswrong/core/utils'
import { execSync } from 'child_process'
import { readFile, stat, unlink } from 'fs/promises'
import path from 'path'

const problemFlags = {
  NoResolution: 'no-resolution',
  UntypedResolution: 'untyped-resolution',

huozhi

const linearGradientText = (
  text: string,
  startColor: number[],
  endColor: number[]
) => {
  let gradient = ''

  for (let i = 0; i < text.length; i++) {
    const r = Math.floor(
      startColor[0] + (i / (text.length - 1)) * (endColor[0] - startColor[0])

huozhi

type KeysOfUnion<T> = T extends T ? keyof T : never

huozhi

# https://stackoverflow.com/questions/61546603/bash-find-file-and-insert-text-in-beginning-of-empty-and-non-empty-files
# insert `'client'\n` to all .client.tsx files
find . -type f -name '*.client.tsx' -print0 | while IFS= read -rd '' file; do ed -s "$file" <<< $'0a\n\'client\'\n\n.\nw\nq'; done


# rename files
ls | grep \.png$ | sed 'p;s/\.png/\.jpg/' | xargs -n2 mv

huozhi

git rev-list --objects --all \
  | grep "$(git verify-pack -v .git/objects/pack/*.idx \
           | sort -k 3 -n \
           | tail -10 \
           | awk '{print$1}')"

huozhi

const path = require('path');
const webpack = require('webpack');
const fs = require('fs');

// Based on the NodeWatchFileSystem class at:
// - https://github.com/webpack/webpack/blob/master/lib/node/NodeWatchFileSystem.js
// which in turn exposes:
// - https://www.npmjs.com/package/watchpack

class CustomWatchFileSystem {

huozhi

const mouseEventOf = (eventType) => (element, x, y) => {
  const rect = element.getBoundingClientRect()

  const event = new MouseEvent(eventType, {
    view: window,
    bubbles: true,
    cancelable: true,
    clientX: rect.left + x,
    clientY: rect.top + y,
  })