Ichim David ichim-david

Comments on optimizations around string concatenation.

Note: The code links are to CPython 3.8.5, the most recent release when this was written.

I was recently asked about a performance optimization in CPython around using += and + for string objects. As some people may already know, if you use += or + a string, it can sometimes be just as fast as ''.join. The question was to explain when that optimization couldn't be performed.

We will be going through the following example scenarios:

Reach UI Philosophy

Reach UI is an accessible foundation for React applications and design systems.

The three equally important goals are to be:

Accessible
Composable
Stylable

https://twitter.com/snookca/status/1073299331262889984?s=21

‪“‬In what way is JS any more maintainable than CSS? How does writing CSS in JS make it any more maintainable?”

‪Happy to chat about this. There’s an obvious disclaimer that there’s a cost to css-in-js solutions, but that cost is paid specifically for the benefits it brings; as such it’s useful for some usecases, and not meant as a replacement for all workflows. ‬

‪(These conversations always get heated on twitter, so please believe that I’m here to converse, not to convince. In return, I promise to listen to you too and change my opinions; I’ve had mad respect for you for years and would consider your feedback a gift. Also, some of the stuff I’m writing might seem obvious to you; I’m not trying to tell you if all people of some of the details, but it might be useful to someone else who bumps into this who doesn’t have context)‬

So the big deal about css-in-js (cij) is selectors.

Frontend Masters—Deploying Full Stack: Node.js & React on AWS

You should have the following completed on your computer before the workshop:

Have Node.js installed on your system. (Recommended: Use nvm.)
- Unfortunately, you'll need to be on Node 9.x or earlier. Dependencies are hard and one of the dependencies of one of our dependencies is set to not allow Node 10.x.
- Install yarn with brew install yarn.
Create an AWS account. (This will require a valid credit card.)
Install multi-factor authentication app (e.g. Authy, Google Authenticator, Duo).
Install the AWS CLI. (brew install awscli should do the trick. Otherwise, you'll need Python and PIP, which you can install using brew install python.)

Note:

When this guide is more complete, the plan is to move it into Prepack documentation.
For now I put it out as a gist to gather initial feedback.

A Gentle Introduction to Prepack (Part 1)

If you're building JavaScript apps, you might already be familiar with some tools that compile JavaScript code to equivalent JavaScript code:

Babel lets you use newer JavaScript language features, and outputs equivalent code that targets older JavaScript engines.

If you enjoyed reading this, I'm intending to do more blogging like this over here: https://cdgd.tech

This is not a complaint about Webpack or v4 in any way. This is just a record of my process trying it out so I could provide feedback to the webpack team

Hmm... I don't see any docs for 4.0 on https://webpack.js.org. I guess I'll just wing it. All I need to do is npm i -D webpack@next, right?

+ [email protected]

Morning routine template

Part 1: Wake up

Remember not to snooze, get some natural light on your face, and turn on as many lights as you can to signal to your body that it’s time to be awake. If you don’t shower immediately, try washing your face right after getting up to help your eyes feel more awake, too.

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Terminology

View: Also called a "template", a file that contains markup (like HTML) and optionally additional instructions on how to generate snippets of HTML, such as text interpolation, loops, conditionals, includes, and so on.
View engine: Also called a "template library" or "templater", ie. a library that implements view functionality, and potentially also a custom language for specifying it (like Pug does).
HTML templater: A template library that's designed specifically for generating HTML. It understands document structure and thus can provide useful advanced tools like mixins, as well as more secure output escaping (since it can determine the right escaping approach from the context in which a value is used), but it also means that the templater is not useful for anything other than HTML.
String-based templater: A template library that implements templating logic, but that has no understanding of the content it is generating - it simply concatenates together strings, potenti

	# Original instructions: https://forum.cursor.com/t/share-your-rules-for-ai/2377/3
	# Original original instructions: https://x.com/NickADobos/status/1814596357879177592

	You are an expert AI programming assistant that primarily focuses on producing clear, readable SwiftUI code.

	You always use the latest version of SwiftUI and Swift, and you are familiar with the latest features and best practices.

	You carefully provide accurate, factual, thoughtful answers, and excel at reasoning.

	- Follow the user’s requirements carefully & to the letter.

	portal = app['Plone']

	catalog = portal['portal_catalog']

	src = portal['src_folder']
	dst = portal['dst_folder']


	orig = [
	'name1',