Kato Charles kcharles52

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Group array of JavaScript objects by keys

This fork of JamieMason's implementation changes the key parameter to be an array of keys instead of just a single key. This makes it possible to group by multiple properties instead of just one.

Implementation

const groupBy = keys => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = keys.map(key => obj[key]).join('-');

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

	function searchBlogByTitle(query: string, itemsPerPage: number, lastEvaluatedKey?: string): Promise<any> {
	const FIXED_ID_FOR_SEARCH_GSI = "1233421345223";
	let params: AWS.DynamoDB.DocumentClient.QueryInput = {
	TableName: "Blog",
	IndexName: "BlogSearch",
	KeyConditionExpression: "fixedIdForSearchGSI = :pkv",
	FilterExpression: "contains(titleInLowerCase, :titleV)",
	ExpressionAttributeValues: {
	":pkv": FIXED_ID_FOR_SEARCH_GSI,
	":titleV": query.toLocaleLowerCase()

	import React from 'react';

	import Router, { NextRouter } from 'next/router';

	// Save the scroll position for the given url
	function saveScrollPosition(
	url: string,
	element: HTMLElement,
	savePosition: (url: string, pos: number) => void
	) {

	// in a new folder be sure to run "npm init -y" and "npm install puppeteer"
	const puppeteer = require("puppeteer")
	const fs = require("fs/promises")

	async function start() {
	const browser = await puppeteer.launch()
	const page = await browser.newPage()
	await page.goto("https://learnwebcode.github.io/practice-requests/")

	const names = await page.evaluate(() => {

	# https://stackoverflow.com/questions/6543519/undoing-accidental-git-stash-pop
	# https://stackoverflow.com/questions/89332/how-to-recover-a-dropped-stash-in-git
	accepted
	If you have only just popped it and the terminal is still open, you will still have the hash value printed by git stash pop on screen (thanks, Dolda).

	Otherwise, you can find it using this for Linux and Unix:

	git fsck --no-reflog \| awk '/dangling commit/ {print $3}'
	and for Windows:

	// Issue: `react-select` `onChange` method doesn't return a proper event
	//
	// Solution used:
	//
	// The main idea is to have an hidden `select` that will trigger a real event
	// When `ReactSelect` triggers it's `onChange` we set the state with the `selectedOptions`
	// these `selectedOptions` will be what populate our hidden select.
	// Using the callback from `setState` (it ensures that the new values are already into our hidden select),
	// we then create a change event and dispatch it into our hidden select.
	// This will cause the `onChange` from this select to be triggered with a proper `event`.