hattmarris

# Identifying a problem container
docker stats --all --format "table {{.ID}}\t{{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}"

# Checking specific container process
docker ps | grep <container id>

hattmarris

#!/usr/bin/env bash

echo "jest coverage in a directory"
if [ $# -eq 0 ]
  then
    echo "No dir supplied"
    exit
fi
DIR=$1

hattmarris

#!/usr/bin/env bash

case $# in
2) DIR=.;SEARCH=$1;REPLACE=$2;;
3) DIR=$1;SEARCH=$2;REPLACE=$3;;
esac

echo "searching for string in $DIR for *.jsx files: $SEARCH"
echo "replacing with string in *.jsx files: $REPLACE"

hattmarris

/* Async approach global namespace */
async function getData() {
    return await fetch("https://jsonplaceholder.typicode.com/posts/1").then(response => response.json());
}

let data = {};
getData().then(d => data = d);


/* Class approach */

hattmarris

git checkout master  
git checkout -b hotfix # branch off master, make changes here

# PR could be submitted at this point for merge to master (production)

git checkout master
git merge hotfix # merge the fix into master 

# Could deploy immediately

hattmarris

// <img>s wrapped in <a> tags
// Select images
var images = document.querySelectorAll('img');

// Get parent links
var links = [];
images.forEach(
  function (el) {
    links.push(el.parentElement);
  }

hattmarris

var id = getRandomInt();
var div = document.createElement('div');
    div.setAttribute('id', id);
var reps = 100;

function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min)) + min;
}

function selectByAttribute(reps) {

hattmarris

function Logger(state) {
  var on = setInitial(state),  
      levels = {
        error: 0,
        log: 1,
        trace: 2
      };
  
  // Define on property getter and setter
  Object.defineProperty(this, 'on', {

hattmarris

// Select a NodeList of image elements 
var selector = 'ul.pages li img[src]'; // Images with src nested in <li> els in the <ul> with pages class
var images = document.querySelectorAll(selector);

function saveAll(images) {
  for(var i=0; i<images.length; i++) {
    var image = images[i];
    saveImageAs(i+1, images[i].src); // use index+1 as their name for page number approximation
  }
}

hattmarris

# tabular view of data with scrolling 
mysql> pager less -SFX
mysql> SELECT * FROM sometable;