Xiong,Cheng-Qing xiongchengqing

## README.md

      
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                xiongchengqing
                / README.md
            
            
              Created
              July 10, 2017 06:48
                — forked from hofmannsven/README.md
            
              
                My simply MySQL Command Line Cheatsheet
              
          
    MySQL

Getting started:

http://www.sqlteaching.com/
https://www.codecademy.com/courses/learn-sql

Related tutorials:

MySQL-CLI
Analyzing Business Metrics


## mongodb cheatsheet.md

      
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                xiongchengqing
                / mongodb cheatsheet.md
            
            
              Created
              July 12, 2017 07:04
                — forked from apolloclark/mongodb cheatsheet.md
            
              
                mongodb cheatsheet
              
          
    MongoDB Cheatsheet

Setup

installation, Ubuntu

https://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

  
## log-traps.js
function createLoggedProxy(obj) {
	var traps = {};

	for (let trap of Object.getOwnPropertyNames(Reflect)) {
		traps[trap] = (...args) => {
			console.log(trap, ...args.slice(0, -1)); // Last arg is always the proxy, no need to log it
			return Reflect[trap](...args);
		}
	}


## m3u8-to-mp4.md

      
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                xiongchengqing
                / m3u8-to-mp4.md
            
            
              Created
              April 21, 2019 16:36
                — forked from tzmartin/m3u8-to-mp4.md
            
              
                m3u8 stream to mp4 using ffmpeg
              
          
    1. Copy m3u8 link


2. Run command

echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 50 $filename.mp4


## index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Multiline Ellipsis</title>
</head>
<body>
    <div class="multiline-ellipsis-wrapper">
        <span class="multiline-ellipsis-content">

## codeswing.json
{
  "scripts": [],
  "styles": []
}

## mapValues.ts
/**
 * 外提
 *
 * @param obj
 * @param fn
 * @returns remapped obj
 */
export function remap<P, T>(
	obj: { [key: string]: T },
	fn: (value: T, index: number) => P

## macOS tips and tricks.md

      
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                xiongchengqing
                / macOS tips and tricks.md
            
            
              Last active
              October 14, 2021 06:14
            
              
                macOS tips and tricks
              
          
    Q：如何在 spotlight 中快速打开文件所在位置？

按住 cmd 双击列表中的文件即可，也可以先选中列表中的文件再按组合键 cmd + R。选中某个文件按住 cmd 键，在预览侧底部会显示文件所在的路径。


## mergeWith.js
import mergeWith from 'lodash/mergeWith'

const m1 = { a: 1, b: 2 }
const m2 = { a: 9, c: 3 }
const m3 = { a: 4, b: 5, d: 7 }

// Lodash version
// merge objects with customizer
mergeWith(m1, m2, m3, (objValue, srcValue, key, object) => {
    if (Object.prototype.hasOwnProperty.call(object, key)) {

## codeswing.json
{
  "scripts": [],
  "styles": []
}
	function createLoggedProxy(obj) {
	var traps = {};

	for (let trap of Object.getOwnPropertyNames(Reflect)) {
	traps[trap] = (...args) => {
	console.log(trap, ...args.slice(0, -1)); // Last arg is always the proxy, no need to log it
	return Reflect[trap](...args);
	}
	}
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Multiline Ellipsis</title>
	</head>
	<body>
	<div class="multiline-ellipsis-wrapper">
	<span class="multiline-ellipsis-content">
	/**
	* 外提
	*
	* @param obj
	* @param fn
	* @returns remapped obj
	*/
	export function remap<P, T>(
	obj: { [key: string]: T },
	fn: (value: T, index: number) => P
	import mergeWith from 'lodash/mergeWith'

	const m1 = { a: 1, b: 2 }
	const m2 = { a: 9, c: 3 }
	const m3 = { a: 4, b: 5, d: 7 }

	// Lodash version
	// merge objects with customizer
	mergeWith(m1, m2, m3, (objValue, srcValue, key, object) => {
	if (Object.prototype.hasOwnProperty.call(object, key)) {