Today I Learned

Short notes on things I learn day to day. Inspired by Simon Willison.

119 TILs so far.

misc

• TIL 06-18-2025 - 2025-06-18

poetry

• Chinese Classics & Poetry — Vivien's Recommendations - 2024-12-10

programming

• Use Zod to validate File input - 2025-06-17
• Remove debugger statements in Vite - 2025-06-15
• Type declarations for a Vite app - 2025-06-11
• User-defined type guard in TypeScript - 2025-06-10
• TypeScript Template Literal Types - 2025-06-09
• TypeScript: Satisfies operator - 2025-06-08
• Inferring the types from a Remix loader - 2025-06-07
• Array.prototype.reduce() can be typed in TypeScript - 2025-06-06
• TypeScript: ElementRef for React.useRef - 2025-06-05
• TypeScript: Type-only imports and exports - 2025-06-04
• Extending HTML Element Types in React 18 - 2025-06-03
• Overriding HTML Attributes in React TypeScript - 2025-06-02
• TypeScript: @ts-expect-error - 2025-06-01
• TypeScript: Exhaustiveness checking in switch with union type - 2025-05-31
• TypeScript Exact Types - 2025-05-30
• TypeScript: exactOptionalPropertyTypes - 2025-05-29
• TypeScript Config: noUnCheckedIndexAccess - 2025-05-28
• TypeScript: Callable interface - 2025-05-27
• TypeScript Assertion Functions - 2025-05-26
• TypeScript narrow Array.includes() - 2025-05-25
• The Details disclosure element - 2025-05-23
• SvelteKit Sync - 2025-05-21
• Svelte components have file location meta data - 2025-05-20
• Deep clone object with structuredClone() - 2025-05-19
• Spaces vs tabs: It's an accessibility issue - 2025-05-18
• Microfrontend using single-spa - 2025-05-17
• setTimeout(): Node.js vs Web - 2025-05-16
• Implementing a custom RTK Query baseQuery - 2025-05-15
• Remove React app from the DOM - 2025-05-13
• Automatically handle updated_at column - 2025-05-11
• Use pnpm's shell-emulator to execute scripts on all platforms - 2025-05-10
• Make changes to a dependency using pnpm patch - 2025-05-09
• Today I Learned: PHP - 2025-05-08
• Using Nunjucks Macros in Eleventy - 2025-05-07
• Null is a billion-dollar mistake - 2025-05-06
• Show data about an npm package using npm view - 2025-05-05
• npm using latest version of package - 2025-05-04
• npm disable audit in .npmrc - 2025-05-03
• Accessing stdin with file descriptor 0 - 2025-05-02
• Next.js statically typed links - 2025-04-30
• Netlify Node.js Version - 2025-04-29
• Module Federation - 2025-04-28
• Logging variables in Chrome DevTools using logpoints - 2025-04-26
• JSON.stringify replacer parameter - 2025-04-25
• JSON.parse reviver parameter - 2025-04-24
• JavaScript WeapMap - 2025-04-23
• JavaScript: Tagged Template Literals - 2025-04-22
• JavaScript Symbol.iterator - 2025-04-21
• Spread operator clones enumerables properties - 2025-04-20
• Signals - 2025-04-19
• JavaScript: scrollend event - 2025-04-18
• Using Promise.race() to implement request timeout - 2025-04-17
• JavaScript: Negative Zero (-0) - 2025-04-16
• Math.random() vs Crypto.getRandomValue() - 2025-04-15
• JavaScript Map - 2025-04-14
• JavaScript Import Map - 2025-04-13
• Fetch Response.statusText - 2025-04-12
• Copy a function in JavaScript - 2025-04-11
• JavaScript Barrel File - 2025-04-09
• Add an object to existing JSON using jq - 2025-04-08
• import.meta - 2025-04-06
• The Mark Text element - 2025-04-05
• Hex color notation have an alpha channel - 2025-04-04
• ESLint's no-restricted-syntax rule - 2025-03-21
• Dart Supports Underscore Digit Separators - 2025-03-11
• Cypress cy.clock() - 2025-03-10
• CSS pseudo-classes and pseudo-elements - 2025-03-09
• CSS :is() pseudo-class - 2025-03-08
• CSS :has() pseudo-class - 2025-03-07
• CSS property: font-variant-numeric - 2025-03-06
• CSS ::first-letter pseudo-element - 2025-03-05
• CSS.escape() - 2025-03-04
• Add custom config to Axios requests - 2025-03-01
• Get current page URL in Astro - 2025-02-28
• Astro's image integration - 2025-02-27
• Add color using FORCE_COLOR - 2025-02-24
• There are actually 50 CSS length units - 2025-02-23
• There are 44 CSS length units - 2025-02-22
• There are 22 - 2025-02-21

technology

• X-Robots-Tag - 2025-06-16
• Delete lines in vi - 2025-06-14
• Using Netlify Redirects to build a URL Shortener - 2025-06-13
• Using GitHub Actions to push changes - 2025-06-12
• The Idiomatic Text element - 2025-05-24
• Using the tar command - 2025-05-22
• Rename an AWS Lightsail instance - 2025-05-14
• Proxying using Netlify Redirects - 2025-05-12
• Nginx Nested Locations - 2025-05-01
• Recursively delete .DS_Store - 2025-04-27
• Send analytics data using the Beacon API - 2025-04-10
• Smart App Banners - 2025-04-07
• GitHub Issue Forms - 2025-04-03
• Create a release in GitHub using API - 2025-04-02
• Show contents of Git stash - 2025-04-01
• Restore a deleted file in Git - 2025-03-31
• Replace a Git Repository with a New One - 2025-03-30
• Git Remove All Commits - 2025-03-29
• Git: push --force-with-lease - 2025-03-28
• Git: Work with multiple accounts - 2025-03-27
• Use same git commit message as previous commit - 2025-03-26
• Checkout previous branch in Git - 2025-03-25
• Add to previous Git commit - 2025-03-24
• Get last modified date using GitHub GraphQL API - 2025-03-23
• Redirect stderr to stdout using 2>&1 - 2025-03-22
• Enable HTTP/2 in Vite's Dev Server by using HTTPS - 2025-03-20
• EditorConfig Glob Expressions - 2025-03-19
• How to Stop All Docker Containers - 2025-03-18
• Push Docker image to self-hosted registry - 2025-03-17
• Docker: Copy files from another image - 2025-03-16
• List the files with the most disk usage - 2025-03-15
• Override web content and HTTP response headers locally - 2025-03-14
• Emulate a focused page in DevTools - 2025-03-13
• Delete files by modified date - 2025-03-12
• No browser cache with self-signed certificates - 2025-03-03
• Buttons can have a value like input elements - 2025-03-02
• GPTBot is OpenAI’s web crawler - 2025-02-26
• Add features to your Netlify site with Snippet Injection - 2025-02-25