jameslockwood

// createPollingAction() returns a thunk which continually polls, once invoked.
// subsequent invocations will cancel the previous poll queue.

const createPoller = (interval, initialDelay) => {
  let timeoutId = null;
  let poller = () => {};
  return fn => {
    window.clearTimeout(timeoutId);
    poller = () => {
      timeoutId = window.setTimeout(poller, interval);

jameslockwood

function searchBinaryTree(tree, targetValue){
    if(tree === null){
        return null;
    }
    if(tree.value === targetValue){
        return tree;
    }
    if(targetValue < tree.value){
        return searchBinaryTree(tree.left, targetValue);
    } else {

jameslockwood

A few simple question I like to ask during initial telephone screen 
interviews, over a codesharing website (e.g. codeshare.io, codebunk.com)

The aim is to get an idea of how they approach and solve problems, 
and if they have a good grasp of the language.  So...

- it's collaborative.  they can ask for help at any time.
- ask the candidate to explain their thought processes as 
  they code, if possible
- it's not important that the code is perfect (i.e. it wont be tested)

jameslockwood

# Your init script
#
# Atom will evaluate this file each time a new window is opened. It is run
# after packages are loaded/activated and after the previous editor state
# has been restored.
#
# An example hack to log to the console when each text editor is saved.
#
# atom.workspace.observeTextEditors (editor) ->
#   editor.onDidSave ->

jameslockwood

function quickSort(arr = []) {
  if (arr.length <= 1) {
    return arr;
  }
  let left = [], right = [], same = [];
  let mid = arr[Math.floor((arr.length - 1) / 2)];
  for (let value of arr) {
    if (value === mid) {
      same.push(value);
    } else if (value < mid) {