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@jeff-r-skillrev
jeff-r-skillrev / TextFieldExt.js
Created November 4, 2023 22:29
React MUI - prevent onWheel from changing a focused input type number
import { TextField } from '@mui/material';
import { useRef } from 'react';
export default function TextFieldExt(props) {
const { type } = props;
const noStupidWheelScroll = type === 'number';
const thisTextField = useRef(null);
const noOnWheelFn = (wheelEv) => {
wheelEv.preventDefault();
};
@ciiqr
ciiqr / zod-optional-null.ts
Last active November 15, 2025 16:36
zod optional/nullable/nullish differences
// zod schema
z.object({
// valid if string or:
optional: z.string().optional(), // field not provided, or explicitly `undefined`
nullable: z.string().nullable(), // field explicitly `null`
nullish: z.string().nullish(), // field not provided, explicitly `null`, or explicitly `undefined`
});
// type
{
@jasonsnell
jasonsnell / purpleaqijsnell.js
Last active October 7, 2020 22:42
Purple AQI Widget
I've moved this to a proper GitHub project.
Check it out at:
https://github.com/jasonsnell/PurpleAir-AQI-Scriptable-Widget
@warpling
warpling / CAMediaTimingFunction.swift
Last active August 22, 2024 15:19
Better CAMediaTimingFunctions
//
// CAMediaTimingFunction.swift
import UIKit
extension CAMediaTimingFunction {
static let linear = CAMediaTimingFunction(name: .linear)
static let easeOut = CAMediaTimingFunction(name: .easeOut)
@theodorosploumis
theodorosploumis / Nework_throttling_profiles.md
Last active November 28, 2025 03:24
Web development - Custom network throttling profiles
Profile download (kb/s) upload (kb/s) latency (ms)
Native 0 0 0
GPRS 50 20 500
56K Dial-up 50 30 120
Mobile EDGE 240 200 840
2G Regular 250 50 300
2G Good 450 150 150
3G Slow 780 330 200
@chriseidhof
chriseidhof / TypedNotifications.swift
Created January 26, 2015 14:41
Typed Notifications
import Foundation
class Box<T> {
let unbox: T
init(_ value: T) { self.unbox = value }
}
struct Notification<A> {
let name: String
}
@pmolina
pmolina / antihero.md
Last active November 13, 2025 13:14
The Programming Antihero

The Programming Antihero

I was fresh out of college, still wet behind the ears, and about to enter the beta phase of my first professional game project -- a late-90s PC title. It had been an exciting rollercoaster ride, as projects often are. All the content was in and the game was looking good. There was one problem though: We were way over our memory budget.

Since most memory was taken up by models and textures, we worked with the artists to reduce the memory footprint of the game as much as possible. We scaled down images, decimated models, and compressed textures. Sometimes we did this with the support of the artists, and sometimes over their dead bodies.

We cut megabyte after megabyte, and after a few days of frantic activity, we reached a point where we felt there was nothing else we could do. Unless we cut some major content, there was no way we could free up any more memory. Exhausted, we evaluated our current memory usage. We were still 1.5 MB over the memory limit!

At this point one of the mos

void CRWaitMinimumDurationAndExecute(NSTimeInterval start, NSTimeInterval minimumDuration, void(^block)(void)) {
double diff = [NSDate date].timeIntervalSince1970-start;
double delayInSeconds = MAX(0.0, minimumDuration-diff);
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
if (block) block();
});
}
//Usage
@calebd
calebd / ArrayHelpers.swift
Last active January 29, 2025 06:05
Swift Helpers
extension Array {
func first() -> Element? {
if isEmpty {
return nil
}
return self[0]
}
func last() -> Element? {
@jlawton
jlawton / blur-and-darken.m
Last active July 17, 2018 19:23
CIFilter Blur
// Fix for https://github.com/bryanjclark/ios-darken-image-with-cifilter
-(instancetype)darkened:(CGFloat)alpha andBlurredImage:(CGFloat)radius blendModeFilterName:(NSString *)blendModeFilterName {
CIImage *inputImage = [[CIImage alloc] initWithImage:self];
CIContext *context = [CIContext contextWithOptions:nil];
//First, create some darkness
CIFilter* blackGenerator = [CIFilter filterWithName:@"CIConstantColorGenerator"];