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// Get all databases
var dbNames = db.adminCommand( { listDatabases: 1 } ).databases.map(function(dbObj) {
  return dbObj.name;
});

// Size functions
var reduceSize = function(values) {
  return Array.sum(values);
};

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Fluid typograghy

body {
  font-size: calc([minimum size] + ([maximum size] - [minimum size]) * ((100vw - [minimum viewport width]) / ([maximum viewport width] - [minimum viewport width])));
}

Example

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version: 0.2

phases:
  install:
    runtime-versions:
      nodejs: 10
    commands:
      - export SKIP="false"
      - if [[ "$(git log -1 HEAD --pretty=format:%s)" == *\[test\]* ]]; then echo "Installing yarn..." && npm install -g yarn; else export SKIP="true"; fi
  pre_build:

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// Given a string containing a list of dates in either format dd/mm/yyyy or mm/dd/yyyy
// where there's one date per line within the string

let a=`28/09/2019
30/09/2019
30/09/2019`;

// Reverse the date's day and month values and return a string with same input format

a = a.split("\n").map((d)=>d.split('/')).map((da)=>([da[1],da[0],da[2]]).join('/')).join("\n")

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Chrome Headless on EC2

For puppeteer usage

How to setup an EC2 instance to run Chrome Headless for usage with Puppeteer

1. Spin up ubuntu EC2 instance and ssh into it

ssh [email protected]

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1. Install ruby 2.6+:

Mac OSX

curl -L https://get.rvm.io | bash -s stable

source /Users/myuser/.rvm/scripts/rvm

rvm install ruby-2.6.5

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Get CloudWatch logs from AWS

With easy to read format

CLI Package to fetch CloudWatch logs and format them with human readable datetimes

Setup

• Download all files in this gist
• Run $ yarn
• Run $ chmod +x ./get-logs.sh

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npx browser-sync start -s -f . --no-notify --host `ifconfig | grep "inet " | grep -v 127.0.0.1 | cut -d\  -f2` --port 8080

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function renameObjectKeys(objArr, renameMap) {
  const keys = Object.keys(renameMap);

  for (let i = objArr.length - 1; i >= 0; i -= 1) {
    for (let j = keys.length - 1; j >= 0; j -= 1) {
      delete Object.assign(
        objArr[i],
        {[renameMap[keys[j]]]: objArr[i][keys[j]] }
 )[keys[j]];

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apt-get update
apt-get install -y software-properties-common
add-apt-repository -y ppa:certbot/certbot
apt-get update
apt-get install -y gpp python zip unzip mariadb-server nginx python-certbot-nginx
systemctl status mariadb
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh | bash
source ~/.bashrc
nvm install 10.13
npm install -g yarn