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Ryan Khasky khasky

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@sudkumar
sudkumar / frontmatter.js
Last active September 9, 2023 17:50
MDX Remark plugin to handle frontmatter
// helps us in parsing the frontmatter from text content
const matter = require('gray-matter')
// helps us safely stringigy the frontmatter as a json object
const stringifyObject = require('stringify-object')
// helps us in getting the reading time for a given text
const readingTime = require('reading-time')
// please make sure you have installed these dependencies
// before proceeding further, or remove the require statements
// that you don't use
@btoo
btoo / usePrevious.ts
Last active September 11, 2022 15:30
typescript type-safe version of usePrevious taken directly from the react docs https://reactjs.org/docs/hooks-faq.html#how-to-get-the-previous-props-or-state
import { useRef, useEffect } from 'react';
/**
* a type-safe version of the `usePrevious` hook described here:
* @see {@link https://reactjs.org/docs/hooks-faq.html#how-to-get-the-previous-props-or-state}
*/
export function usePrevious<T>(
value: T,
): ReturnType<typeof useRef<T>>['current'] {
const ref = useRef<T>();
import { combineReducers } from 'redux';
import AppReducer from './AppReducer';
import UsersReducer from './UsersReducer';
import OrderReducer from './OrderReducer';
import NotificationReducer from './NotificationReducer';
import CommentReducer from './CommentReducer';
const appReducer = combineReducers({
/* your app’s top-level reducers */
@jvandenaardweg
jvandenaardweg / App.jsx
Last active November 19, 2020 22:41
Use React's Context API in React Native (0.59.0) to have network connectivity status globally available. Gist for Medium article: https://medium.com/@jvandenaardweg/easily-manage-connection-status-updates-in-react-native-28c9b4b0647f
import React from 'react';
import { NetworkProvider } from './NetworkProvider';
import { ExampleComponent } from './ExampleComponent';
export default class App extends React.PureComponent {
render() {
return (
<NetworkProvider>
<ExampleComponent />
@cecilemuller
cecilemuller / 2019-https-localhost.md
Last active May 19, 2024 11:58
How to create an HTTPS certificate for localhost domains

How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

@VeraZab
VeraZab / LocalNotifications.js
Last active February 26, 2023 23:26
Simple local notification with Expo
import React, {Component} from 'react';
import {TextInput, View, Keyboard} from 'react-native';
import {Constants, Notifications, Permissions} from 'expo';
export default class Timer extends Component {
onSubmit(e) {
Keyboard.dismiss();
const localNotification = {
title: 'done',
@egardner
egardner / deepequal.js
Created May 22, 2017 00:21
Simple deep equality comparison in Javascript (ES5+)
// Deep Equality comparison example
//
// This is an example of how to implement an object-comparison function in
// JavaScript (ES5+). A few points of interest here:
//
// * You can get an array of all an object's properties in ES5+ by calling
// the class method Object.keys(obj).
// * The function recursively calls itself in the for / in loop when it
// compares the contents of each property
// * You can hide a "private" function inside a function of this kind by
@ericelliott
ericelliott / composables.js
Created September 5, 2016 23:42
Composable utilities
const curry = fn => (...args) => fn.bind(null, ...args);
const map = curry((fn, arr) => arr.map(fn));
const join = curry((str, arr) => arr.join(str));
const toLowerCase = str => str.toLowerCase();
const split = curry((splitOn, str) => str.split(splitOn));
@jsonberry
jsonberry / onload.js
Last active July 3, 2023 14:10
Window vs. Document Loading Events
/**
Taken from: http://stackoverflow.com/questions/588040/window-onload-vs-document-onload
According to Parsing HTML documents - The end,
The browser parses the HTML source and runs deferred scripts.
A DOMContentLoaded is dispatched at the document when all the HTML has been parsed and have run. The event bubbles to the window.
The browser loads resources (like images) that delay the load event.
A load event is dispatched at the window.
Therefore, the order of execution will be
DOMContentLoaded event listeners of window in the capture phase
DOMContentLoaded event listeners of document
@knowbody
knowbody / RNfontWeights.js
Created July 14, 2016 13:42
React Native Font Weight Cheatsheet iOS
{ fontWeight: '100' }, // Thin
{ fontWeight: '200' }, // Ultra Light
{ fontWeight: '300' }, // Light
{ fontWeight: '400' }, // Regular
{ fontWeight: '500' }, // Medium
{ fontWeight: '600' }, // Semibold
{ fontWeight: '700' }, // Bold
{ fontWeight: '800' }, // Heavy
{ fontWeight: '900' }, // Black