juliobetta

const withSome = characters.some(character => character.debut < 1990);

const withReduce  = characters.reduce((accumulator, character) => {
  if(character.debut < 1990) {
    return true;
  }
  return accumulator;
}, false);

// true

juliobetta

characters.filter(character => character.debut < 1990).length > 0;
// true;

juliobetta

const mapped = characters.map(character => character.name);

const reduced  = characters.reduce((accumulator, character) => [...accumulator, character.name], []);

// [
//   "Donkey Kong",  
//   "Captain Falcon",  
//   "Fox",  
//   "Kirby",  
//   "Link"

juliobetta

const filtered = characters.filter(character => character.debut < 1990);

const reduced  = characters.reduce((accumulator, character) => {
  if(character.debut < 1990) {
    return [...accumulator, character];
  }

  return accumulator;
}, []);

juliobetta

const list = [
  { 
    id: "772b70fa-57be-40fc-976a-1123320df94e",
    name: "Jupiter"
  },
  { 
    id: "cced1a50-19b7-4971-aacc-a732eb5ec64c",
    name: "Saturn"
  },
  { 

juliobetta

const list = [1, 2, 3, 4, 5];

const result = list.reduce((accumulator, item) => {
  return accumulator + item; 
}, 0);

console.log(result); // 15

juliobetta

git config --global alias.tags "tag --sort version:refname"

juliobetta

.container {
  -ms-overflow-style: none;  /* IE 10+ */
  overflow: -moz-scrollbars-none;  /* Firefox */
}

.container::-webkit-scrollbar { 
  display: none;  /* Safari and Chrome */
}

juliobetta

# /etc/systemd/system/couchdb.service

[Unit]
Description=Couchdb service
After=network.target

[Service]
Type=simple
User=couchdb
ExecStart=/opt/couchdb/bin/couchdb -o /dev/stdout -e /dev/stderr

juliobetta

# https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04
# https://www.digitalocean.com/community/questions/how-to-change-swap-size-on-ubuntu-14-04

fallocate -l 4G /swapfile
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile
swapon -s
sysctl vm.swappiness=10
sysctl vm.vfs_cache_pressure=50