🔥 Daily Digest: Master AI Search Engines and React Concepts to Stay Ahead of the Game

Daily Issue #56

• Top AI Search Engines to Boost Productivity

• MongoDB Essentials You Need to Know

• React Concepts Put You In The Top 5% Of All React Developers

• TensorFlow vs. PyTorch: What is right for you?

• How To Keep Track Of Online Users With WebSockets

• LearningPoint - A repository for learning different technologies, frameworks, features

• dify - an open-source LLM app development platform

• dio - A powerful HTTP client for Dart and Flutter, which supports global settings, Interceptors, FormData, aborting and canceling a request, files uploading and downloading, requests timeout, custom adapters

• md-editor-v3 - Markdown editor for vue3, developed in jsx and typescript, dark theme、beautify content by prettier, render articles directl, paste or clip the picture and upload it

• teable - The Next Gen Airtable Alternative: No-Code Postgres

Midjourney

first-valid() Function: Handle Fallback Values Elegantly

Problem: I wanted to apply a CSS property with a fallback mechanism, using the first valid CSS variable from a list of options

Solution: The first-valid() function can be used to apply the first valid CSS variable from a set, or fallback to a default value if none are valid

.element {
  color: first-valid(--primary-color, --secondary-color, black);
}

//it can also be solved with var()
.element {
  color: var(--primary-color, var(--secondary-color, black));
}

Keywords: CSS fallback values, var() function, CSS variables, multiple fallbacks, first valid value, cascading styles, CSS custom properties

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