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TypeError: Cannot read property 'status' of undefined.

Christian Petersen fnky

TypeError: Cannot read property 'status' of undefined.
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fnky /
Last active April 18, 2024 02:33
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
fnky /
Last active April 12, 2024 18:12
Awesome Variable Fonts

Awesome Variable Fonts

A list of open source and free* variable fonts.

* Some fonts may require a license to be used for commerical use.

Open Source

fnky / stripe-keys-and-ids.tsv
Last active March 29, 2024 22:52
Stripe keys and IDs
Prefix Description Notes
ac_ Platform Client ID Identifier for an auth code/client id.
acct_ Account ID Identifier for an Account object.
aliacc_ Alipay Account ID Identifier for an Alipay account.
ba_ Bank Account ID Identifier for a Bank Account object.
btok_ Bank Token ID Identifier for a Bank Token object.
card_ Card ID Identifier for a Card object.
cbtxn_ Customer Balance Transaction ID Identifier for a Customer Balance Transaction object.
ch_ Charge ID Identifier for a Charge object.
cn_ Credit Note ID Identifier for a Credit Note object.
fnky /
Created October 1, 2018 08:19
Display terminal color table
# This file echoes a bunch of color codes to the
# terminal to demonstrate what's available. Each
# line is the color code of one forground color,
# out of 17 (default + 16 escapes), followed by a
# test use of that color on all nine background
# colors (default + 8 escapes).
fnky / hooks.js
Last active January 7, 2024 12:32
React Hooks: useReducer with actions and selectors (Redux-like)
function useSelectors(reducer, mapStateToSelectors) {
const [state] = reducer;
const selectors = useMemo(() => mapStateToSelectors(state), [state]);
return selectors;
function useActions(reducer, mapDispatchToActions) {
const [, dispatch] = reducer;
const actions = useMemo(() => mapDispatchToActions(dispatch), [dispatch]);
return actions;
fnky / promise-tuple.js
Last active December 18, 2023 19:54
Retrieve tuples from Promise results / async functions
* 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])
fnky / login.tsx
Last active December 15, 2023 19:56
Remix Form validation with zod
import { json, ActionFunction, useActionData, Form } from "remix";
import { z } from "zod";
// This type infer errors from a ZodType, as produced by `flatten()` of a parsed schema.
type inferSafeParseErrors<T extends z.ZodType<any, any, any>, U = string> = {
formErrors: U[];
fieldErrors: {
[P in keyof z.infer<T>]?: U[];
fnky /
Last active November 24, 2023 15:04
Web/React Resources (Last updated Nov 3, 2022)
fnky /
Last active June 21, 2023 16:50
Activate the power chime sound effect. For MacBook Pro and MacBook Air

Power Chime

To activate the sound effect

$ defaults write ChimeOnAllHardware -bool true; open /System/Library/CoreServices/ &

Do deactivate it, simply change the ChimeOnAllHardware boolean to false.

fnky /
Last active January 13, 2023 23:32
Stylus Dark theme for Hacker News
:root {
--color-scale-black: hsl(0, 0%, 3.5%);
--color-scale-white: #ffffff;
--color-scale-gray-1: hsl(0, 0%, 8.5%);
--color-scale-gray-2: hsl(0, 0%, 11.0%);
--color-scale-gray-3: hsl(0, 0%, 13.6%);
--color-scale-gray-4: hsl(0, 0%, 15.8%);
--color-scale-gray-5: hsl(0, 0%, 17.9%);
--color-scale-gray-6: hsl(0, 0%, 20.5%);
--color-scale-gray-7: hsl(0, 0%, 24.3%);