hallettj

// It is important to declare your variables.

(function() {
    var foo = 'Hello, world!';
    print(foo);  //=> Hello, world!
})();

// Because if you don't, the become global variables.

(function() {

MattSurabian

Are your feelings hurt?

If you rushed through David Shariff's JS Quiz or are just new to JS they might be. I know mine were. After I dried my eyes, I took the quiz again, this time very slowly trying to get at the meat behind each answer. Below is my attempt to explain each question's answer and offer some interesting permutations so that others can move beyond their hurt feelings and come out the other side better JS developers.

I initially thought I'd turn this into a blog post but think it's probably better as a gist.

Question #1

Don't over think it.

var foo = function foo() {

jonschlinkert

Unary operators

(and the oddities of number evaluation in JavaScript)

Type conversion, typecasting, and coercion are different ways of, implicitly or explicitly, changing an entity of one data type into another. [--wikipedia][wikipedia]

Unary operators, or "typeof +'foo' === huh?"

timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

chrismccoy

How to parse Gutenberg content for headless WordPress
https://kinsta.com/blog/headless-wordpress-gutenberg/

Adding wrapper to Gutenberg’s Table block
https://helloadmin.com/adding-wrapper-to-gutenbergs-table-block/

Display specific Gutenberg blocks of a post outside of the post content in the theme
https://florianbrinkmann.com/en/display-specific-gutenberg-blocks-of-a-post-outside-of-the-post-content-in-the-theme-5620/

Modifying the Markup of a Core Block

rauschma

This content moved here: https://exploringjs.com/impatient-js/ch_arrays.html#quickref-arrays

bradtraversy

GENERATORS:

• Text Content Generator - http://www.lipsum.com
• Favicon Generator - http://tools.dynamicdrive.com/favicon
• Data Generator - https://mockaroo.com/
• Mobile Mockup Generator - https://mockuphone.com
• Logo Generator - https://www.logaster.com
• UUID Generator - https://www.uuidgenerator.net/
• Hash Generator - https://passwordsgenerator.net/sha256-hash-generator/
• Ultimate Code Generator - https://webcode.tools/

elierotenberg

Idiomatic Data Fetching using React Hooks

This post has been written in collaboration with @klervicn

Virtually all web apps and websites need to pull data from a server, usually through a JSON-returning API. When it comes to integrating data fetching in React component, the "impedence mismatch" between the React components, which are declarative and synchronous, and the HTTP requests, which are imperative and asynchronous, is often problematic.

Many apps use third-party libraries such as Redux or Apollo Client to abstract it away. This requires extra dependencies, and couple your app with a specific library to perform data fetching. In most cases, what we want is a direct way to integrate plain HTTP requests (e.g. using native fetch) for usage in React components.

Here we will discuss how we can use React Hooks to do this in an elegant, scalable manner.