EvgenyArtemov

// Async compose
const compose = (…functions) => input => functions.reduceRight((chain, func) => chain.then(func), Promise.resolve(input));

// Functions fn1, fn2, fn3 can be standard synchronous functions or return a Promise
compose(fn3, fn2, fn1)(input).then(result => console.log(`Do with the ${result} as you please`))

EvgenyArtemov

	//based on http://modernjavascript.blogspot.de/2013/08/building-better-debounce.html
	var debounce = function(func) {
		var timeout, timestamp;
		var wait = 99;
		var run = function(){
			timeout = null;
			func();
		};
		var later = function() {
			var last = Date.now() - timestamp;

EvgenyArtemov

const putAt = (path, obj, value) => {
  const ObjCopy = {...obj};
  const arrPath = path.split('.').reverse();
  
  const copy = arrPath.reduce((acc, name, i) => {
    const temp = {};
    if(i === 0) {
      temp[name] = value;
    } else {
      temp[name] = {...acc};

EvgenyArtemov

$small-desktop: 960px;
$large-desktop: 1200px;
$tablet: 768px;
$tablets-landscape: 1024px;
$mobile: 480px;
$mobile-landscape: 640px;

@mixin response($media) {
  @if $media == largeDesktop {
    @media only screen and (min-width: $large-desktop) { @content }

EvgenyArtemov

@mixin firefox-only {
  @at-root {
    @-moz-document url-prefix() {
      & {
        @content;
      }
    }
  }
}

EvgenyArtemov

Example: Moving up to a few commits to another branch

Branch A has commits (X,Y) that also need to be in Branch B. The cherry-pick operations should be done in the same chronological order that the commits appear in Branch A.

cherry-pick does support a range of commits, but if you have merge commits in that range, it gets really complicated

git checkout branch-B
git cherry-pick X
git cherry-pick Y

EvgenyArtemov

In the process of setting up a new Mac, I installed node.js.  After the node.js installer finished, it recommended to add /usr/local/share/npm/bin to my path.  It turns out there is a very neat way to do this in OS X, the /etc/paths file!  The file contains a list (one per line) of paths that are added to the $PATH variable in the shell. Here are some quick directions to add to the path:

##Open up Terminal.
Run the following command:

sudo nano /etc/paths
Enter your password, when prompted.
Go to the bottom of the file, and enter the path you wish to add.
Hit control-x to quit.
Enter “Y” to save the modified buffer.