backslash112’s gists

backslash112 / mongodbIndexExporter.js

Last active August 24, 2021 16:02 — forked from ytkang/mongodbIndexExporter.js

Mongodb Index exporter importer

	/*
	How to export
	* mongo is mongoshell command

	mongo dbname --quiet mongodbIndexExporter.js > index.js
	*/
	let collectionNames = db.getCollectionNames();
	let index_data = {'collections': []};

	for (let i in collectionNames) {

backslash112 / Time Machine On JuiceFS.md

Created July 24, 2021 23:14 — forked from yujunz/Time Machine On JuiceFS.md

Time machine on JuiceFS

JFS_BASE=/Users/yujunz/JuiceFS
JFS_NAME=rogerz-s3-cn-east-1-qiniu
BUNDLE=TimeMachine.sparsebundle
VOLUME=/Volumes/TimeMachine

# Mount JuiceFS
juicefs mount --cache-dir $JUICEFS_BASE/cache --batch 10 --writeback --metacache --opencache $JFS_NAME $JFS_BASE/$JFS_NAME

# Create sparse bundle

backslash112 / count-duplicate.js

Last active July 1, 2019 17:03

	function countDuplicate(arr) {
	let map = new Map();
	arr.forEach(num => {
	if (map.get(num) > 0) {
	// set(key, value)
	map.set(num, map.get(num) + 1);
	} else {
	// set(key, value)
	map.set(num, 1);
	}

backslash112 / decrypt-message.js

Created May 17, 2019 00:30

	function decrypt(word) {
	// string to char array
	let chars = [];
	for (let c of word) {
	chars.push(c);
	}

	// step 3
	let asciiValues = chars.map(c => c.charCodeAt(0));
	console.log(asciiValues);

backslash112 / Main.java

Last active October 4, 2018 02:46

	import java.util.*;

	class Main {
	public static void main(String[] args) {
	System.out.println(modifyStr("").equals(""));
	System.out.println(modifyStr("Automotive parts").equals("A6e p3s"));
	System.out.println(modifyStr("Automotive par").equals("A6e p1r"));
	System.out.println(modifyStr("Automotive pa").equals("A6e p0a"));
	System.out.println(modifyStr("Automotive p").equals("A6e p0p"));
	System.out.println(modifyStr("Automotive p").equals("A6e p0p"));

backslash112 / print-leetcode-question.js

Created July 10, 2018 21:24

Pring Leetcode question

	document.getElementsByTagName('body')[0].innerHTML = document.querySelectorAll('.question-description__3U1T')[0].innerHTML;

	var css = 'body {line-height:1.2} p { font-size: 11px; margin:0px; padding:0px } pre {font-size:8px; margin:0px; padding:2px 4px} code {font-size:8px}',
	head = document.head \|\| document.getElementsByTagName('head')[0],
	style = document.createElement('style');

	style.type = 'text/css';
	if (style.styleSheet){
	// This is required for IE8 and below.
	style.styleSheet.cssText = css;

backslash112 / index.html

Created May 28, 2018 22:26

JS Bin // source https://jsbin.com/jelifixubi

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>

	<script id="jsbin-javascript">

backslash112 / docker-images.sh

Created May 16, 2018 14:34

Blog: Start a Remote MySQL Server with Docker quickly

docker images

backslash112 / alter-user-2.sql

Created May 16, 2018 14:33

Blog: Start a Remote MySQL Server with Docker quickly

ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';

backslash112 / connect.console

Created May 16, 2018 14:28

java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed

java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed

Cun Yang backslash112