petarnonkovic

<?php

// Does string contain letters?
function _s_has_letters( $string ) {
    return preg_match( '/[a-zA-Z]/', $string );
}

// Does string contain numbers?
function _s_has_numbers( $string ) {
    return preg_match( '/\d/', $string );

petarnonkovic

Table of Contents generated with DocToc

• FrontEnd Masters - ES6 notes
  • Proper Tail Call (PTC)
  • Function Hoisting
  • Variables
    • Temporal Dead Zone
• Rest Parameters

petarnonkovic

Using Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278

Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/

petarnonkovic

#! /bin/sh
alias gs="git status"
alias gc="git commit"
alias gr="git checkout"
alias ga="git add"
alias gl="git lola"

petarnonkovic

@mixin for-size($range) {
  $phone-upper-boundary: 600px;
  $tablet-portrait-upper-boundary: 900px;
  $tablet-landscape-upper-boundary: 1200px;
  $desktop-upper-boundary: 1800px;

  @if $range == phone-only {
    @media (max-width: #{$phone-upper-boundary - 1}) { @content; }
  } @else if $range == tablet-portrait-up {
    @media (min-width: $phone-upper-boundary) { @content; }

petarnonkovic

@mixin for-phone-only {
  @media (max-width: 599px) { @content; }
}
@mixin for-tablet-portrait-up {
  @media (min-width: 600px) { @content; }
}
@mixin for-tablet-portait-only {
  @media (min-width: 600px) and (max-width: 899px) { @content; }
}
@mixin for-tablet-landscape-up {

petarnonkovic

SCSS

Cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the awesome CSS extensions you've always wished you had:

• [Nested selectors

petarnonkovic

@mixin animation($animate...) {
    $max: length($animate);
    $animations: '';

    @for $i from 1 through $max {
        $animations: #{$animations + nth($animate, $i)};

        @if $i < $max {
            $animations: #{$animations + ", "};

petarnonkovic

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Element

Box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
• elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
• elem.getClientRects(), elem.getBoundingClientRect()

petarnonkovic

/*!
 * $.preload() function for jQuery – http://mths.be/preload
 * Preload images, CSS and JavaScript files without executing them
 * Script by Stoyan Stefanov – http://www.phpied.com/preload-cssjavascript-without-execution/
 * Slightly rewritten by Mathias Bynens – http://mathiasbynens.be/
 * Note that since this script relies on jQuery, the preloading process will not start until jQuery has finished loading.
 */

jQuery.preload = function(array) {
	var length = array.length,