dannycroft

What problem are you trying to solve?

• Introduce the problem statement here. This might be well-defined ('we need to tweak the parameter of a rule from X to Y to help reduce a certain type of abuse'), or more fuzzy ('we need to invest more in paying back technical debt').
• Focus on the underlying problem that needs to be solved, as opposed to jumping to how you will solve it.

Why should we solve it?

• Why is this an important problem for us to solve?
• Is it a big enough problem to solve?
• Should we solve it now, or later?
• Provide specific data (quantitative or qualitative) wherever possible.

dannycroft

const isWebpSupported = () =>
  new Promise((resolve, reject) => {
    const img = new Image();
    img.onload = () => resolve(true);
    img.onerror = () => reject(false);
    img.src = 'data:image/webp;base64,UklGRh4AAABXRUJQVlA4TBEAAAAvAAAAAAfQ//73v/+BiOh/AAA=';
  });

isWebpSupported().then(console.log).catch(console.error)

dannycroft

npm audit | grep -B 1 -A 10 High

dannycroft

/* ------------------------------- */
/*  common/errorHandler.js */
/* ------------------------------- */

const asyncUtil = fn =>
function asyncUtilWrap(...args) {
  const fnReturn = fn(...args)
  const next = args[args.length-1]
  return Promise.resolve(fnReturn).catch(next)
}

dannycroft

import os

# Return CPU temperature as a character string
def getCPUtemperature():
    res = os.popen('vcgencmd measure_temp').readline()
    return(res.replace("temp=","").replace("'C\n",""))

# Return RAM information (unit=kb) in a list
# Index 0: total RAM
# Index 1: used RAM

dannycroft

import EventEmitter from 'events';
import onFinished from 'on-finished';

/*
 * RequestQueue to ensure that only a single request is executing at a time.
 *
 * This middleware intercepts requests as they come in by delaying executing of
 * next() until previous requests finish processing. This complements external
 * server configuration via haproxy or similar that restricts concurrent
 * requests. This per-process queue allows an application level guarantee of

dannycroft

/* -----------------------------------------------------------------------------

Complete the following tasks using only browser based APIs. Update 
the supplied "getUsers()" function to achieve the following:

- Make a request to the API_URL (see below)
- Return a Promise
- Parse each of the returned results to match the example below:
                                                             
[

dannycroft

#!/bin/sh

sudo apt-get update \
  && sudo apt-get install -qy docker.io
  
sudo apt-get update \
  && sudo apt-get install -y apt-transport-https \
  && curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

dannycroft

 const log = new Proxy({}, {
   get: (_, color) => (...args) => {
     console.log(`%c ${args.join(' ')}`, `color: ${color}`);
   }
 });

 // example
 log.tomato('I am tomato');
 log.chocolate('I am chocolate');
 log.cornflowerblue('I am cornflowerblue');

dannycroft

aws --output table  ec2 describe-instances --query 'Reservations[].Instances[].[Tags[?Key==`Name`] | [0].Value,InstanceId,InstanceType]'