natanfeitosa

function stringToNumber(str: string) {
  str = str.trim()

  if (/[^\d]/.test(str)) {
    throw new Error('Deve conter apenas numeros')
  }

  return Array.from(str).reverse().reduce((acc, cur, idx) => {
    let val = (cur.charCodeAt(0) - 48)
    return acc + (val * 10 ** idx)

Deleplace

# Copyright 2019 Google LLC
# SPDX-License-Identifier: Apache-2.0
package main

import (
	"fmt"
	"image"
	"image/color"
	"image/draw"
	"image/gif"

ubmit

#!/bin/bash

ffmpeg -i input.mov -s 600x400 -pix_fmt rgb8 -r 10 -f gif - | gifsicle --optimize=3 --delay=3 > output.gif

androidfred

Advanced Anki deck editing made simple (ish)

Anki is a great open source flashcard app that can be used to learn anything.

This Gist is a full end to end example of how to:

• export Anki decks from Anki
• import Anki decks into MySQL
• edit Anki decks using MySQL
• export Anki decks from MySQL

MohamedTaha98

// Djb2 hash function
unsigned long hash(char *str) {

        unsigned long hash = 5381;
        int c;
        while ((c = *str++))
            hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
        return hash % NUM_BUCKETS;

}

genekogan

from bs4 import BeautifulSoup
import requests
import re
import urllib2
import os
import argparse
import sys
import json

# adapted from http://stackoverflow.com/questions/20716842/python-download-images-from-google-image-search

oanhnn

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

1. Generate ssh key pairs for accounts and add them to GitHub accounts.

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE