Imaduddin Haetami artidataio

Boolean() or !! (double bang, double negation)?

What's the best way to answer the question "true or false?" in JavaScript

JavaScript does not bother you too much with types (at first), which is both a blessing and a cure. But we all know the Boolean type. Boolean variables can either be true or false. Yes or no.

Every value in JavaScript can be translated into a boolean, true or false. Values that translate to true are truthy, values that translate to false are falsy. Simple.

This is about two ways to make that translation.

Exposed headers

Service	SSL	status	Response Type	Allowed methods	Allowed headers

Array Iteration

https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it mu

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

	export interface FunctionUrlRequest {
	version: '2.0';
	routeKey: '$default';
	rawPath?: string;
	rawQueryString?: string;
	cookies?: string[];
	headers: { [header: string]: string };
	queryStringParameters: { [parameter: string]: string };
	requestContext: {
	accountId: string;

	import "./index.css";
	import React from "react";
	import ReactDOM from "react-dom";
	import {
	DataBrowserRouter,
	Route,
	useLoaderData,
	Form,
	useNavigation,
	} from "react-router-dom";

	// This file is used to override the REST API resources configuration
	import { AmplifyApiRestResourceStackTemplate } from "@aws-amplify/cli-extensibility-helper";

	export function override(resources: AmplifyApiRestResourceStackTemplate) {
	// Add our user pool id as a parameter so we can create authorizers with it
	// Note that you have to replace <your auth name here> with the name of your auth!
	// It's the name of the folder in amplify/backend/auth that was created when you
	// added the auth to the project (NOT userPoolGroups). Also make sure you keep
	// the preceding "auth" part of the string before the auth name, it's necessary.
	resources.addCfnParameter(

	// Tableau 10 color theme
	$themes: (
	blue: #5778a4,
	orange: #e49444,
	red: #d1615d,
	teal: #85b6b2,
	green: #6a9f58,
	yellow: #e7ca60,
	purple: #a87c9f,
	pink: #f1a2a9,