therealFoxster

# Function variable x
x = var('x');

# Function f(x)
f(x) = (x-3)*ln(x)-1;

# Derivative f'(x)
df = diff(f,x);

# Newton's Iterative Formula

therealFoxster

#import "uYouItem.h"

@interface DownloadItem : NSObject <NSCoding>
@property (nonatomic, readwrite, strong) NSString *downloadIdentifier;
@property (nonatomic, readwrite, strong) NSString *videoID;
@property (nonatomic, readwrite, strong) NSString *filePath;
@property (nonatomic, readwrite, strong) NSURL *remoteURL;
@property (nonatomic, readwrite, strong) uYouItem *uYouItem;
@property (nonatomic, readwrite, assign) int type;
@property (nonatomic, readwrite, strong) NSURLSessionDownloadTask *downloadTask;

therealFoxster

export const $ = s => s.startsWith("#") && ![".", " ", ">"].some(c => s.includes(c))
    ? document.getElementById(s.substring(1))
    : document.querySelector(s);

export const $$ = s => document.querySelectorAll(s);

therealFoxster

import { useState } from 'react';
import Select, { components } from 'react-select';

export default function CustomSelect() {
  const [filteredOptions, setFilteredOptions] = useState<Options<{ value: string | number; label: string }>>([]);
  const currentFilteredOptions = useRef<Options<{ value: string | number; label: string }>>([]);

  useEffect(() => {
    const newOptions = currentFilteredOptions.current;
    if (JSON.stringify(newOptions) !== JSON.stringify(filteredOptions)) {