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# Ask for the user password
# Script only works if sudo caches the password for a few minutes
sudo true

# Install kernel extra's to enable docker aufs support
# sudo apt-get -y install linux-image-extra-$(uname -r)

# Add Docker PPA and install latest version
# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

paligiannis

If .DS_Store was never added to your git repository, simply add it to your .gitignore file.

If you don't have one, create a file called

.gitignore

In your the root directory of your app and simply write

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var waitForEl = function(selector, callback) {
  if (jQuery(selector).length) {
    callback();
  } else {
    setTimeout(function() {
      waitForEl(selector, callback);
    }, 100);
  }
};

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Bootstrap 4 Utilities Cheatsheet

Media Queries

1. up

Bootstrap 4 Mixins	Compiled into
@include media-breakpoint-up(xs)	@media (min-width: 0px)
@include media-breakpoint-up(sm)	@media (min-width: 576px)
@include media-breakpoint-up(md)	@media (min-width: 768px)

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// Greek Tax Registration Number Validation (AFM)
// Αλγόριθμος ορθότητας ΑΦΜ
function validateAFM(afm) {
    if (!afm.match(/^\d{9}$/) || afm == '000000000')
        return false;

    var m = 1, sum = 0;
    for (var i = 7; i >= 0; i--) {
        m *= 2;
        sum += afm.charAt(i) * m;

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<?php
/*
*  Chunk through result set and output as CSV file in browser.
*/
function outputCSV($columns, $query, $chunkSize = 200) {
	header("Content-type: text/csv");
	header("Content-Disposition: attachment; filename='export-" . date("YmdHis") . ".csv");
	header("Pragma: no-cache");
	header("Expires: 0");
		

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<?php
/*
*  Chunk through result set and output as CSV file in browser.
*/
function outputCSV($columns, $query, $chunkSize = 200) {
	header("Content-type: text/csv");
	header("Content-Disposition: attachment; filename='export-" . date("YmdHis") . ".csv");
	header("Pragma: no-cache");
	header("Expires: 0");