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If you love little JavaScript coding challenges that teach you about the basics of the language, you'll enjoy TypeOfNaN JavaScript Quizzes, a project by Nick Scialli and a number of other contributors.

Even after writing JavaScript for many years, I still find it hard to believe how many of such questions I get wrong. Ultimately, I don't think that matters unless I'm live coding in front of an audience or something. Debugging is part of the workflow so even if we get something subtle wrong initially, we can usually figure out the problem and fix it. What we are aiming for in most cases is an end result, not necessarily a process. But a little quiz like this can definitely enhance your understanding, and that can't hurt!

And if you like interesting little JavaScript tidbits like I often share in this newsletter, don't forget that I've compiled all my previous tutorials with updated demos and code samples in an e-book bundle you can grab from Leanpub.

Now on to this week's tools!

Text Editors, IDEs, etc.

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Debug Visualizer
A VS Code extension for visualizing data structures while debugging. Works best with JavaScript/TypeScript. Also tested with C#, Java, and PHP. Works with any language that you can debug in VS Code.

Lens.vim
An automatic window resizing plugin for Vim. Automatically resizes windows when their content exceeds their window dimensions, but does so respecting some minimum and maximum resize bounds.

guijs
A multi-purpose native Windows and Mac app to help you manage your development projects. Has features for projects, package installation, script management, and more.

OpenChakra
Full-featured visual editor and code generator for React using Chakra UI (the React component library).

Autocode
An online IDE for connecting APIs together, for makers and developers alike.

Codecov
A code coverage solution to improve your code review workflow and quality. Provides highly integrated tools to group, merge, archive, and compare coverage reports.

CodeinCloud
Provides managed and dedicated cloud IDEs, hosted private cloud solutions and DevOp pipelines. Users can access on-demand IDEs for development.

Markdown App
Online or native WYSIWYG editor for Markdown for Mac, Windows, and Linux.

iHateRegex
Interactive regex cheatsheet for searching for common or complex regular expression solutions.

Peacock
VS Code plugin to subtly change the color of your workspace. Ideal when you have multiple VS Code instances and you want to quickly identify which is which.

Courses by Wes Bos (Master Packages!) on Sale for $97:
 

Testing and Debugging Tools

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Haxor
Helps you support and learn from developers as they build with your products. See how developers use your product by watching their screens, code changes, and open applications.

Kasaya
A "WYSIWYG" (kind of) scripting language and run-time for browser automation.

Blisk
Now at version 12+. A developer-oriented browser that provides businesses with a development workspace for teams and freelancers to develop and test modern web applications twice as fast.

Hexometer
All-in-one website maintenance and performance monitoring tool that continuously monitors and reports 2800+ data points.

Beautify.log
A Node.js library to beautify console.logs with colors, making them easier to read and more useful.

virtual-module
Evaluate a module in a sandbox with in-memory module resolution.

findead
Dead React components finder to find components no longer in use.

ci-detect
Detect what kind of CI environment the program is in (e.g. Jenkins, GitLab, Netflify, Travis-CI, etc).

Zoya
A highly composable logging library written in TypeScript, used for both client and server applications.

React Tools

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Edtr.io
A customizable edit-in-place WYSIWYG component for enabling user-editable pages in React.

resourcerer
Declarative data-fetching and caching framework for REST APIs with React.

react-typical
React typing animation in ~400 bytes of JavaScript.

React Tiny Fab
A tiny (~700 byte gzip'd) WAI-ARIA compliant floating action button for React. The home page has the button working in the bottom right corner if you want to see what this does.

react-roughviz
a thin React wrapper around roughViz, the library for creating sketchy/hand-drawn styled charts in the browser.

react-ga
A JavaScript module that can be used to include Google Analytics tracking code in a website or app that uses React for its front-end codebase.

React Awesome Slider
React content transition slider. A 60fps, lightweight, performant component that renders an animated set of production-ready general purpose sliders.

React Tippy
A lightweight tooltip library for React based on Tippy.js and powered by Popper.js.

react-adal
Azure Active Directory Library (ADAL) support for React.

iframe-resizer-react
The official React interface for iFrame Resizer, a library that auto-resizes height and width of same- and cross-domain iframes to fit their contained content.

React Puzzle Confirm
This is kind of odd. It's a modal to "confirm" (kind of like a captcha) by fitting a puzzle piece using a slider.
 

A Tweet for Thought

According to reports, Corona beer sales are not down due to confusion with Coronavirus (despite some false claims). But I did like this tweet by Kelly Vaughn on that subject.
 

Got a Tool Suggestion?

Made something? Send links via Direct Message on Twitter @WebToolsWeekly (details here). No tutorials or articles, please. If you have any suggestions for improvement or corrections, feel free to reply to this email.
 

Before I Go...

Speaking of code editors, Codewerks is a new project that is running a Kickstarter for "software using a streamlined iPad interface that gives you all the flexibility of a Linux machine."

Thanks to everyone for subscribing and reading!

Keep tooling,
Louis
webtoolsweekly.com
@WebToolsWeekly
PayPal.me/WebToolsWeekly
WTW on YouTube

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If you've never looked into using the HTML Drag and Drop API, I've created a super simple code example that uses the least code possible to demonstrate how simple it is to allow one element to be dragged into another one on a web page.

First, here's the HTML:

Notice the draggable attribute set to true, and the IDs that I'll use as hooks in the JavaScript. Here's the JavaScript:

Here I'm listening for the dragover and drop events to ensure that the element gets moved properly. The move itself is accomplished using the well-known appendChild() method.

And that's it! Aside from the variable declarations, it's just 6 lines of JavaScript. This code on its own isn't going to do a whole lot. All it does is drag the 'box' element into the 'dropzone' element.

You can see this in action in this CodePen demo, which also includes a little extra code that does the following:

• Adds some styles to indicate that the box is draggable and that the dropzone is being dragged over
• Listens for the dragend event to remove styles indicating that the box is draggable and disables the 'dragged over' styles
• Switches the draggable attribute to false

Now on to this week's tools!
 

JavaScript Libraries and Frameworks

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p5.js
Now at version 1+. JavaScript library for creative coding, with a focus on making coding accessible and inclusive for artists, designers, educators, and beginners.

Hex Engine
A modern 2D game engine for the browser, written in TypeScript and designed to feel similar to React.

LInQer
The C# Language Integrated Queries ported for JavaScript for amazing performance.

Type Route
A flexible, type safe routing library, built on top of the same core library that powers React Router.

Angular
The popular framework is now a version 9.

Mirage JS
An API mocking library that lets you build, test and share a complete working JavaScript application without having to rely on any back-end services.

Solid
A declarative, efficient, and flexible JavaScript library for building user interfaces that doesn't use a virtual DOM.

Alpine.js
A rugged, minimal framework for composing JavaScript behavior in your markup.

BlockLike.js
An educational JavaScript library that bridges the gap between block-based and text-based programming.

Testing and Debugging Tools

Beginner JavaScript by Wes Bos is 50% Off!
The master package includes 88 HD videos, part of 15 modules – and course updates are free forever.   promoted 

Screenshot Cyborg
Take a full-page screenshot of a webpage, up to 50 URLs at once. Choose to render the screenshot for desktop, tablet, or phone.

Stryker Mutator
A testing toolkit for JavaScript (also Scala and C#) that uses mutation testing, which means tests are run after bugs, or mutants, are automatically inserted into your code.

Cypress
Now at version 4+. Fast, easy, and reliable end-to-end testing for anything that runs in a browser.

Color Contrast Checker
Online tool that analyses and suggests colors that meet the required contrast ratio. Creates shareable links for chosen contrast checks.

LeakLooker X
Discover, browse and monitor database or source code leaks.

Animockup
Online prototype/animation tool to create animated mockups in your browser and export as video or animated GIF.

single-spa Devtools Inspector
A Firefox/Chrome devtools extension to provide utilities for helping with applications using single-spa (framework for front-end microservices).

micro-jaymock
Tiny API mocking microservice for generating fake JSON data.

The Contrast Triangle
Tool for simultaneously checking text, link, and background contrast. This one also has shareable links for specific tests.

Shieldfy
Automated security assistant that integrates with GitHub to show you potential vulnerabilities in your code.

puppeteer-in-electron
Use puppeteer to test and control your Electron application.

Site Builders, CMS's, Static Sites, etc.

Advanced React & GraphQL by Wes Bos is 50% Off!
The master package includes 68 HD videos, part of 10 modules – and course updates are free forever.   promoted 

LiveCanvas
Pure HTML and CSS WordPress builder that uses Bootstrap 4 and helps pages achieve better SEO results.

React Blog
A blogging system built on React where the blog posts are individual GitHub issues.

Calcapp
A cloud-based app designer enabling you to create apps without having to do any programming.

Factor JS
A JavaScript CMS platform that lets you build powerful and professional JavaScript applications fast.

NoCo
Enterprise-grade, no-code platform for Node or React developers. Generate code for most of your app, and only write the parts that make your product unique.

Sitebot
Create a personal website in a few minutes by just chatting. Seems to require Facebook Messenger login.

Webcodesk
A powerful visual development tool for building React apps. It's tightly coupled to the React API, so the knowledge translates directly.

BuilderX
A browser based design tool that codes React Native and React for you.

gatsby-plugin-next-seo
A plug-in that makes managing your SEO easier in Gatsby projects.

lego
A fast static site generator that generates optimised, performant websites.

Kodular
A drag-and-drop no-code app builder.

A Tweet for Thought

This thread establishes that password strength indicators are flawed.
 

Send Me Your Tools!

Made something? Send links via Direct Message on Twitter @WebToolsWeekly (details here). No tutorials or articles, please. If you have any suggestions for improvement or corrections, feel free to reply to this email.
 

Before I Go...

If a tech conference that you were going to attend has been cancelled, you might want to check out 40 Conferences Gone Virtual, by Spokable, which is tracking which conferences are happening online.

Thanks to everyone for subscribing and reading!

Keep tooling,
Louis
webtoolsweekly.com
@WebToolsWeekly
PayPal.me/WebToolsWeekly

In previous tips I introduced a basic HTML Drag and Drop API example along with some things you can do with the dataTransfer() object. This tip will focus on the different events you can listen for during a drag operation.

There are 7 drag events that are supported across all modern browsers. They are:

• dragstart - A dragging operation begins (on dragged item)
• drag - A drag operation is in process (on dragged item)
• dragenter - A dragged item enters a valid drop target (on drop target)
• dragover - A valid drop target is dragged over (on drop target)
• dragleave - A dragged item leaves a valid drop target (on drop target)
• drop - A dragged item is dropped on a valid drop target (on drop target)
• dragend - A drag operation ends (on dragged item)

Now on to this week's tools!

React Tools

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Enform
Handle React forms with joy. Helps you manage form validation, dirty form submission and reset, field values and changes, and error messages.

react-letter
A React component that allows for an easy display of HTML e-mail content with automatic sanitization. Support for features should match what is supported by Gmail.

useCustomHook
A starter template for creating a new React Hook.

react-easy-state
Simple React state management made with ES6 Proxies.

Crank.js
Write JSX-driven components with functions, promises, and generators. uses the same JSX syntax and diffing algorithm popularized by React, allowing you to write HTML-like code directly in your JavaScript.

use-scroll-to-bottom
React Hook that uses IntersectionObserver to detect when the user has scrolled to the bottom of the page.

React Cool Portal
A React hook for Portals that helps you render children (e.g. modals, dropdowns, tooltips, etc) into a DOM node that exists outside the DOM hierarchy of the parent component.

React State Selector
Performant, type safe and easy to use React global state manager.

React Table
Now at version 7+. Hooks for building lightweight, fast and extendable data grids for React.

react-curved-arrow
Use nice curvy arrows in your React project. Great for interactive tutorials and product tours.

react-enroute
Now at version 4+. React router with a small footprint for modern browsers.

codelift
A "No Code" GUI for your React app.

50% Off Courses by Wes Bos (Master Packages!):
 

 

Media Tools (SVG, Audio, Video, etc.)

British Museum Collection
The British Museum has released 1.9 million images, most with a CC 4.0 license.

Rickshaw
A JavaScript toolkit for creating interactive time series graphs.

Trianglify
Algorithmically generated triangle art that you can render in a project using a simple API, or generate and download using the online tool.

Plotly.js
Built on top of D3.js and stack.gl, a high-level, declarative charting library with over 40 chart types, including scientific charts, 3D graphs, statistical charts, SVG maps, financial charts, and more.

Image Cropper
A quick and easy way to resize any image (PNG, JPG, SVG, GIF, and WEBP supported).

PicsArt Photo Editor
More than a dozen online photo editing tools including duotone effects, overlays, filters, background editing, and more.

BlurHash
A compact representation of a placeholder for an image. Replace boring grey boxes with beautiful states for your placeholders.

Image Compare Viewer
A vanilla JavaScript, dependency-free component that adds an interactive image diff viewer to any page. The on page demos are pretty cool!

OpenJSCAD.org
A set of modular, browser and command line tools for creating parametric 2D & 3D designs with JavaScript code.

Vime
Open source video player library focused on giving users and developers the best possible media player experience. Supports HTML5, Dash, YouTube, Vimeo, and Dailymotion.

Mixkit Music
Free stock music clips that are royalty-free for commercial projects.

The Uncategorizables

Exchange Rates API
A simple and lightweight free service for current and historical foreign exchange rates.

Amazon AppFlow
A fully managed integration service that enables you to securely transfer data between SaaS apps like Salesforce, Marketo, Slack, and ServiceNow, and AWS services like Amazon S3, in just a few clicks.

Digital Brain
Auto-generates your basic documentation and then provides a beautiful, fast, and collaborative interface for your team to complete your documentation process.

Permanent.org
A new non-profit, secure cloud storage service with a focus on privacy that offers a free gigabyte to start.

Flow
A fast, secure, and developer-friendly blockchain built to support the next generation of games, apps, and the digital assets that power them.

Phelia
A reactive Slack application framework. Build interactive Slack apps without webhooks or JSON headache. If you know React, you know how to make a Slack app.

hCaptcha
A drop-in replacement for reCAPTCHA (you can switch within minutes) that protects user privacy, rewards websites, and helps companies get their data labeled.

markmap-lib
Visualize your Markdown with mindmaps.

Plausible
Simple and privacy-friendly alternative to Google Analytics. A lightweight and open-source site analytics tool that doesn’t use cookies and is fully compliant with GDPR, CCPA, and PECR.

Public APIs
A collection of free public APIs for software developers, categorized.

A Tweet for Thought

Technology has changed the way we behave, as this thread demonstrates.
 

Got a Tool Suggestion?

Made something? Send links via Direct Message on Twitter @WebToolsWeekly (details here). No tutorials or articles, please. If you have any suggestions for improvement or corrections, feel free to reply to this email.
 

Before I Go...

If you're a big Seinfeld fan like I am, you'll love this: Seinfeld Adventure. Right now it's just a pitch for a game. I seriously doubt Jerry and his producers will approve this, but it's pretty cool to see what it would be like to play "a game about nothing".

Thanks to everyone for subscribing and reading!

Keep tooling,
Louis
webtoolsweekly.com
@WebToolsWeekly
PayPal.me/WebToolsWeekly
WTW on YouTube