danielrose7

import { useState } from 'react';

import isEqual from 'lodash.isequal';

/**
 * Memoizes by deep equality — returns the previous reference when
 * content is unchanged, even if the input is a new object. Avoids
 * unnecessary downstream invalidation that `useMemo` can't prevent
 * when its deps are new references with identical data.
 *

danielrose7

Claude Prompt Patterns

Best practices for writing effective Claude prompts, based on Anthropic guidance as of spring 2026.

Structure: Use XML tags

XML tags are the strongest signal for separating prompt sections. Claude was trained to treat them as semantic boundaries.

danielrose7

# Delete local branches merged to the default branch + their worktrees
# Catches both true merges (git) and squash merges (GitHub PR status)
# Reads default branch from origin/HEAD — works with main, staging, etc.
# Usage: trim [--force]  (--force skips confirmation)
trim() {
  local repo_root
  repo_root="$(git rev-parse --show-toplevel 2>/dev/null)" || { echo "Not in a git repo"; return 1; }

  local base_branch
  base_branch="$(git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null)"

danielrose7

# Worktree-aware branch switcher
#
# The problem: git won't let you checkout a branch that's already open in a
# worktree. The error message tells you exactly where to go — so why not just
# go there automatically?
#
#   $ git checkout some-branch
#   fatal: 'some-branch' is already checked out at '/Users/dan/work/admin.worktrees/some-branch'
#
# Instead of copying that path, this alias catches the error and cd's there.

danielrose7

# add to runs tests for both modified and untracked files ending in .test.ts extension
alias jestdiff="git status --porcelain | grep -E '\.test\.ts$' | awk '{print \$2}' | xargs pnpm jest"

danielrose7

/**
 * pdfMake's getBase64 provides for an async callback that does not allow for error handling (at least in v0.2.x)
 * this recreates their OutputDocument.getBase64() behavior with accessible error handling
 */
export const generatePdfBase64 = (
  pdf: TCreatedPdf,
  {
    endStream = true,
    readChunkSize = 1024 * 1024 * 1024, // 1 GiB (matches pdfmake's OutputDocument.bufferSize)
    timeoutMs = 15 * 1000,

danielrose7

import { Prisma, PrismaClient } from '@prisma/client';
import get from 'lodash.get';

describe('prisma extensions', () => {
  it('RLS extension sets app policy helpers', async () => {
    // #region setup
    const userId = 'user_123';
    const organizationId = 'org_456';
    const membershipRole = 'admin';
    const setRlsSql = Prisma.sql`SELECT set_rls_app_context(${userId}, ${organizationId}, ${membershipRole});`;

danielrose7

Tag Type

• category of tag
• has_many :tags
• optionally belongs to a parent tag type (nested option)

Tag

• specific field
• belongs_to :tag_type
• optionally belongs to a parent tag (nested option)

danielrose7

// - example rails erb view
//  <div id="edit-react-form"
//       data-submit-endpoint="<%= billing_profile_path(@billing_profile.token) %>"
//       data-initial-values="<%= @form.initial_values.to_json %>"
//       data-cancel-url="<%= billing_profile_path(@billing_profile.token) %>"
//       >
//  </div>

function parsePropsFromDataset(dataset) {
  let stringifyedOptions = { ...dataset }; // convert DOMStringMap into Object

danielrose7

import * as React from "react";
import { SmallButton } from "../../shared"; // a cool <button />

const DisplayLocalStorage = () => {
  const [changes, setChanges] = React.useState(0); // triggers re-renders
  let localStorageState = {};

  for (let i = 0; i < localStorage.length; i++) {
    const key = localStorage.key(i);
    let value;