huynhducduy

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

huynhducduy

// If the script does not work, you may need to allow same site scripting https://stackoverflow.com/a/50902950

Linkedin = {
    config: {
        scrollDelay: 3000,
        actionDelay: 200,
        nextPageDelay: 5000,
        // set to -1 for no limit
        maxRequests: 190,
        totalRequestsSent: 0,

huynhducduy

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

huynhducduy

import * as React from "react";
import { useMousePosition } from "~/hooks/useMousePosition";

/** Component to cover the area between the mouse cursor and the sub-menu, to allow moving cursor to lower parts of sub-menu without the sub-menu disappearing. */
export function MouseSafeArea(props: { parentRef: React.RefObject<HTMLDivElement> }) {
  const { x = 0, y = 0, height: h = 0, width: w = 0 } = props.parentRef.current?.getBoundingClientRect() || {};
  const [mouseX, mouseY] = useMousePosition();
  const positions = { x, y, h, w, mouseX, mouseY };
  return (
    <div

huynhducduy

const cache = {}

export default function useGlobalMemo (key, fn, deps) {

  if (!cache[key]) {
    cache[key] = {
      subs: 0,
      deps,
      value: fn(),
    }