trav

@techsavvytravvy.com

4869 Followers 832 Following

sr software engineer @ crunchyroll 🦀🔪 @ crablang winning the fight against Big Outside™

thumbnail for episode 17 of glow in the dark
Fantasy title art for Glow in the Dark: The Baraganoon. A large boat with a skull on the front moves across icy water or snow under purple skies, with several illustrated characters standing on deck holding weapons. Snow blows across the scene, and the gold title text fills the top.
Illustration of a posed fighter with glowing yellow eyes holding an oversized spiked sword over their shoulder. The sword has a pink glow along the blade. The character wears green armor pieces on the shoulders, forearms, knees, and shins, a white cape flowing behind, a headband, and a reddish sash over a white skirt-like garment, set against a black background.
Digital painting of a massive ship named 'SS Friendship' engulfed in flames, stranded in a glowing cave. The ship dominates the center of the image, its burning masts illuminating the cave with orange light. The foreground shows a lineup of seven adventurers and a giant boar standing knee-deep in water, facing the burning ship. Each figure has a distinct silhouette: a small figure with a scythe, a red-haired sword wielder, a cloaked mage with long white hair, and others in fantasy attire. The title 'Glow in the Dark: Survivors of Friendship' appears at the top in a stylized font.
Screenshot of a post from Elon Musk (@elonmusk) on X (formerly Twitter) stating: 'There was (still is) a massive cyberattack against X. We get attacked every day, but this was done with a lot of resources. Either a large, coordinated group and/or a country is involved. Tracing ...' The profile picture is a cosmic-style black hole, and the verified checkmark is present next to the X logo.
Cover of 'The Manga Guide to Databases' by Mana Takahashi and Shoko Azuma. The cover features an anime-style illustration of a fairy character in a green outfit holding a wand, with a magical glow effect. Behind her, three girls in princess attire are standing near a large open book containing database tables and SQL queries. A white castle is visible in the background.
High quality meme featuring multiple images of Scorpion from Mortal Kombat in his signature yellow ninja outfit with black mask. The character is shown in different art styles and poses against fiery backgrounds. The images are placed around the letters, similar to how Homer decorated his workplace sign that originally read 'DON'T FORGET: YOU'RE HERE FOREVER' with Maggie's photos in The Simpsons. Text reads 'GET: HERE OVER' with the letter 'O' positioned separately, likely referencing Scorpion's famous 'Get Over Here' catchphrase. The image is framed with black corner dots on a very light pink background.
TypeScript code showing a function isNumber that incorrectly determines if a value is a number by checking if typeof x is 'string'. The function main demonstrates the problem by assigning an unknown type to x and using isNumber in a conditional check. This leads to a faulty type narrowing where x is mistakenly assumed to be a number, causing an error when passed to the square function.
ts code showing that only the right type can be returned
TypeScript code defining a generic function createPredicate<T> that enforces an explicit type parameter using a TS error. It uses NoInfer<T> and an alternative failure type S, which extends symbol and is assigned typeof FAIL. The function returns a predicate that checks whether applying f(x) does not return FAIL. Below, a specific predicate isString is created using createPredicate<string>, verifying if a value is a string.
TypeScript code defining a type predicate function isUser using createPredicate<User>. The function checks if an input x is an object, not null, has 'name' and 'age' properties, and that 'name' is a string while 'age' is a number. A comment notes that returning x directly is not allowed because its inferred type is object & Record<'name', unknown> & Record<'age', unknown>. However, explicitly returning an object with name and age properties works.
TypeScript code defining a generic function createPredicate<T> that enforces explicit type parameters and includes a fallback failure symbol (S extends symbol = typeof FAIL). The function takes a predicate function f and returns a type predicate function. If the predicate returns FAIL, it returns false; otherwise, it checks deep equality. Below, an example use case defines isString, which ensures a value is a string, returning FAIL if not.
TypeScript code defining a generic function createPredicate<T> that takes a function f and returns a type predicate function. The function uses deepEquals to verify type correctness inside a try-catch block. Below, an example use case defines isString, a type predicate created using createPredicate<string>, which throws an error if the input is not a string.
TypeScript code defining two type guard functions: isString and isNumber. The isString function correctly checks if x is a string using typeof x === 'string'. However, the isNumber function mistakenly also checks typeof x === 'string', despite its type guard claiming x is a number. A comment next to the mistake reads '// whoops'.
Lissajous Figure
Animated colorful Lissajous curve with multiple intersecting sinusoidal lines forming a symmetric, web-like pattern. The lines transition through a spectrum of colors, including red, orange, yellow, green, blue, and purple, against a black background.
Terminal output showing an error message from attempting to run 'cargo mommy check' on 'bappy-script v0.1.3'. The Rust compiler reports a syntax error at 'src/main.rs:20:6', indicating 'expected one of '!' or '::''. The line in question reads 'mods passes;', with an error underline under 'passes'. The output ends with 'error: could not compile 'bappy-script'' followed by a whimsical message: 'mommy knows her little girl can do b'.
Side-by-side comparison of JavaScript and Python asynchronous file processing. The JavaScript example uses 'Promise.all' to concurrently process an array of filenames with 'processFile', handling errors with a catch block. The Python example uses 'asyncio.create_task' to create concurrent tasks for processing files and collects results as tasks complete using 'asyncio.as_completed', handling exceptions with a try-except block.
C code defining a custom memory allocator using function pointers. The code includes an 'Allocator' struct with function pointers for allocation, deallocation, and reallocation. A function 'create_allocator' returns an instance of 'Allocator'. A wrapper function 'realloc_wrapper' is defined, and a global allocator 'GLOBAL_ALLOCATOR' is initialized with 'malloc', 'free', and 'realloc_wrapper' as its function pointers. Header guards ensure the code is included only once.
code snippet demonstrating higher order functions in typescript
c code recreating rust's stdlib Vec
TypeScript code defining a 'Result' type that can be either 'Ok<T>' or 'Err<E>', where 'E' extends 'Error'. A namespace 'Result' contains two functions: 'isOk' checks if a given 'Result' is not an 'Error', and 'isErr' checks if a given 'Result' is an 'Error'. The code demonstrates that a type and a namespace can share the same name.
Screenshot of Google Suggestions with a dark theme. The search term is 'gleam,' followed by related suggestions: 'gleam higher kinded types' searched 24 seconds ago, 'gleam roadmap' searched 7 hours ago, 'gleam polymorphism' searched 8 hours ago, and 'gleam custom types' searched 8 hours ago.
A screenshot of a Bluesky post by 'Allison @adjectiveallison.com' with the text: 'I heard trav is a WILD partier. BIG parties.' The post timestamp reads 'November 30, 2024, at 11:18 AM.' Overlaid annotations circle 'WILD' and 'BIG' in red with added text. Next to 'WILD,' the annotation reads 'wild = OUTSIDE???' in bold red text. Next to 'BIG,' the annotation reads 'BIG!!' also in bold red text.
A weather update screenshot. At the top, a 'Winter Weather Advisory' box from the National Weather Service states: 'Winter Weather Advisory. These conditions are expected to last until 7:00 AM, Saturday, November 30.' Below, a section titled 'Flurries Forecasted' says: 'Flurries for the next hour.' A bar graph illustrates flurry intensity increasing over the next hour. The 'Hourly Forecast' below shows: Now - 28°F with snow; 3 PM - 28°F with 100% chance of snow; 4 PM - 27°F with 25% chance of snow; 5 PM - 26°F with cloudy skies; 5:11 PM - Sunset; 6 PM - 25°F, partly cloudy.
A frog sitting on a plate of baked beans in outer space. Fire is seen at the bottom with embers floating upward The image appears to have been purposefully degraded and distorted. Text overlaid in a whimsical font reads "it is wednesday my dudes".
chatgpt impersonating jar jar binks warning about the dangers of testicular cancer
Screenshot of TypeScript code demonstrating scoped types and interfaces. The global scope declares 'type X = "q";' and 'interface Y { a: 9 }'. Within a block, a local 'type X = 5;' and 'interface Y { b: 10 }' are declared. In this block: - 'const x: X = 5;' correctly uses the locally scoped type 'X'. - 'const y: Y = { b: 10 };' correctly uses the locally scoped interface 'Y'. Outside the block: - 'const x: X = 5;' causes a type error because it refers to the global type 'X', which expects a string value. - 'const y: Y = { b: 10 };' causes a type error because it refers to the global interface 'Y', which does not have the property 'b'.
An animated character with a bald head and dark gray skin stands against a background of roaring orange flames. The character is dressed in a white collared shirt with a loosened dark blue tie, their face tilted upward with closed eyes and a tired, yet serene expression.
A young man wearing a white T-shirt stands outdoors with a dramatic and intense expression on his face. He is gesturing wildly with his arms and hands while yelling "fuck you". The background features green grass, bushes, and some trees in a residential setting.
A white bowl filled with venison fahsa, a popular Yemeni dish, featuring tender shredded venison topped with a vibrant red tomato-based salsa, bright yellow rice, and pieces of golden-brown naan or flatbread. The dish is presented on a dark, reddish wooden table.
A small glass bottle of orange-colored hot sauce with a black cap, sitting on a light-colored wooden desk. The background is slightly blurred, showing a green wall and part of an electronic device. A mechanical keyboard with visible 'page up' and 'home' keys is partially visible in the bottom left corner.
A dark-themed error message overlay on a webpage. The text in the overlay reads 'Error receiving response' followed by 'An unknown error has occurred.' Below the error message is a brown button labeled 'Dismiss' with a small 'X' icon to the left. The background text, partially visible, describes a programming context mentioning 'Bun implements a minimal version of the...' and other technical terms.
A black-and-white hand-drawn illustration of a child viewed from behind. The child has messy, spiky hair, is wearing a ragged short-sleeved shirt and shorts, and is barefoot. They are holding a large key in their right hand, raised above their shoulder, and their left hand rests on their lower back. The image is drawn on a notebook page with a spiral binding visible on the left side.
A TypeScript code snippet defining a function named 'parseJson' that takes a string parameter 'text' and an optional 'reviver' function. The function's return type is a 'Result' type wrapping 'unknown' and 'ParseError'. Within a try-catch block, it attempts to parse the input text using 'JSON.parse', utilizing the reviver if provided, and returns an 'Ok' result upon success. If parsing fails, it catches the error and returns an 'Err' result using 'ParseError.from' to transform the error.
A TypeScript code example demonstrating advanced generic types. It includes a 'MakeOptional' utility type that makes certain keys optional using 'Omit' and 'Partial' utility types. There is a 'BaseOptions' type that takes a generic 'T' and contains a required 'data' field and an optional 'onBar' callback function. An 'Options' type conditionally applies 'MakeOptional' based on whether the generic 'T' extends 'void'.
A TypeScript code snippet demonstrating type safety. It defines an interface named 'User' with two string properties: 'name' and 'email'. Below the interface, there is a function declaration 'doesUserThing' that takes a parameter 'user' of type 'User'. The function body is represented with an ellipsis, indicating omitted content.
A TypeScript code snippet demonstrating JSON parsing and validation using Valibot. The first line imports everything from 'valibot' as 'v'. The next lines define a constant 'user', parsed from an empty string and explicitly cast to an object with properties 'name' and 'email' as strings. There is a prominent red underline highlighting the type cast. Below, 'validUser' is defined using Valibot's parsing mechanism with 'v.object', ensuring both 'name' and 'email' properties are strings.
A scene depicting Geralt of Rivia from 'The Witcher' series, with long white hair, looking intensely forward with a serious expression. Next to him in bold red text is the phrase 'I CAN'T FUCKING SLEEP.' The text appears stylized with a drop shadow effect against a muted forest background.
A black and white simplistic drawing of a figure wearing sunglasses with a neutral, slightly smirking expression. The character is pointing with both hands, index fingers extended and thumbs up, while tilting their head slightly. The background is solid black.
An illustration of the NPC (Non-Player Character) meme character, which is a simplistic gray humanoid figure with minimal facial features, including a blank expression with small circular eyes, a straight line for a mouth, and furrowed brows indicating anger or intensity. The background is solid light blue, creating contrast with the character's gray color.
A black and white hand-drawn illustration of a monstrous mimic chest. The creature's body is shaped like a treasure chest with its lid open, revealing a mouth full of sharp, jagged teeth and a long, drooling tongue extending outward. The mimic's chest appears to have two rounded eyes on the top lid, and it is supported by multiple spider-like legs. The drawing is shown on a piece of spiral-bound notebook paper.
A black and white hand-drawn illustration of a D&D mimic as a monstrous anthropomorphic toilet. The creature has a mouth full of sharp teeth where the toilet bowl's opening would be, with a long tongue hanging out, dripping liquid. Its tank resembles a back portion with two bulging eyes on top, and it is supported by four bent, spider-like legs. The drawing is shown on a page of a spiral-bound notebook.
A poorly cropped meme image of a scene from Spider-Man featuring Willem Dafoe as Norman Osborn seen with a smirking expression, captioned with "I'm something of a designer myself," where the word "designer" has been edited into the original quote, replacing the word "scientist".
Promotional poster for a music event called "Bass Havoc" featuring Fendz as the main act, illustrated with a pixel art wizard in a dark hooded robe casting a fiery spell of purple and orange with white streaks resembling lightning. The Fendz logo is styled with a distinctive font and a retro yellow to pink gradient. Special guests are listed below and include TSTRO, Polly Hocket, Geometry, and BWES. Event details are also listed: Friday, November 29th, 2024 at Thunderbird River Ranch, 701 E Michigan Ave, Kalamazoo, MI 49007. 21+ event with a $15 cover charge. Doors open at 8:30 PM.
Pixel art of a hooded figure in dark robes casting a powerful spell. The figure's hand extends outward, conjuring a blazing stream of bright purples, pinks, and fiery whites resembling lightning or magic energy. The scene has a mystical, night-sky backdrop with scattered stars and a cloudy, ethereal atmosphere.
A comic-style meme illustrating a cycle of self-pressure and burnout. The first panel shows a head with a red, scribbled mess inside, saying 'I just need to push myself harder.' The second panel shows a person lying in bed thinking, 'I just need to push myself harder,' with arrows leading to and from the phrase 'push harder' repeatedly, forming a cycle. The final panel shows a small stick figure opening a door, asking, 'Are u okay?' The main figure is surrounded by dark scribbles, responding, 'Yes, I just need to push myself harder.'
Pixel art of a cloaked figure releasing a burst of magical energy. The energy is depicted with vibrant colors like bright purples, pinks, oranges, and white, emanating in jagged, lightning-like streaks. The figure, wearing a dark cloak, is silhouetted against the glowing burst, creating a strong contrast. The background is dark, accentuating the radiant energy burst. The pixelated style gives the scene a retro, video game-inspired look.
A scene from the TV show “It’s Always Sunny in Philadelphia.” featuring the character Charlie Kelly, played by Charlie Day, sitting on a worn-out couch in a cluttered room with green walls. He is wearing a grey hoodie and navy blue sweatpants, leaning forward with one arm gesturing in emphasis as he speaks. In front of him is a table with a cardboard box on top of it. Behind him, various items are scattered, including what appears to be a guitar standing upright against the wall. The subtitle reads: “I just don’t think there’s any science to support that, buddy.”
aurora
screenshot from photos app showing An illustration of the NPC (Non-Player Character) meme character, which is a simplistic gray humanoid figure with minimal facial features, including a blank expression with small circular eyes, a straight line for a mouth, and furrowed brows indicating anger or intensity. The background is solid light blue, creating contrast with the character's gray color.
A code snippet demonstrating TypeScript utility type and a function. The `Mutable<T>` type removes readonly modifiers recursively from properties of a type `T`. The code uses conditional types and mapped types, checking if properties extend a `Readonly` object and recursively making nested objects mutable if true. Below, there is a function `const Mutable` which takes a generic input `T` and casts it to `Mutable<T>`, effectively removing readonly properties. The code is shown on a dark background with syntax highlighting for clarity.
Illustration of the NPC (Non-Player Character) meme character, which is a simplistic gray humanoid figure with minimal facial features, including a blank expression with small circular eyes, a straight line for a mouth, and furrowed brows indicating anger or intensity. The background is solid light blue.
Screenshot of a BlueSky post by trav (@techsavvytravvy.com), showing a profile picture of a person with tied-back hair and a light shirt. Below the username are tags for Rust, TypeScript, and a GitHub project labeled 'crablang/crab' with a GitHub icon. The post text reads 'oh shit!' against a dark-themed interface.
A scene from the movie 'Joker' featuring Joaquin Phoenix as Arthur Fleck. He is shown in close-up, with long dark hair, wearing a white shirt, and holding a lit cigarette near his mouth. He has a subtle smile as he looks off to the side. Text at the bottom reads 'You wouldn't get it'.
A dark-themed interface displaying two lines comparing 'emoji' and 'unicode' representations of the trademark symbol (™). The first line reads 'emoji: |™|' with the trademark symbol appearing in a bold, gray font inside white vertical bars. The second line reads 'unicode: |™|' with the trademark symbol appearing in a black font, also enclosed in white vertical bars. The contrast highlights a visual difference between the two representations
Screenshot of a file directory in a dark-themed interface displaying two items vertically. The first item is a file named 'tweets.js' shown with a gray icon featuring a question mark, indicating an unrecognized or generic file type. Its size is listed as 29 bytes, and it was last modified '1 day ago.' The second item is a folder named 'tweets_media' represented by a blue folder icon. It contains 0 items, and its modification date is also '1 day ago.' Both items are aligned horizontally with text information displayed to the right of their icons.
Screenshot of an iOS Shortcut named 'vid from gif' being edited. The shortcut workflow begins with receiving input from Images and Apps via the Share Sheet. If there is no input, it continues. The next action adds an album to a variable labeled 'x'. The following step converts a GIF to a video using 'Make video from GIF' with 'Shortcut Input' as input. Finally, the video is saved to the album stored in variable 'x'. The editing interface is displayed in dark mode with various interactive elements highlighted.
Screenshot of a BlueSky post by trav (@techsavvytravvy) with Rust and TypeScript tags, shown in a light theme. The post text reads 'currently not possible sure Soon™ tho' with the trademark symbol following 'Soon™'.
A glass bowl containing a creamy herb dip made with cream cheese. The white dip has visible flecks of herbs and is smoothly spread within the bowl, which is placed on a marbled granite countertop.