Today I Learned

How to validate your password with regex

Example password validation regex

  • rules below can be concatenated

Special character matching

  • Matches (operator is ?=) any string that has at least a special character e.g.: sadsds@asdasd

Number matching

  • Matches (operator is ?=) any string that has at least a number: e.g.: s1adsdsasdasd

Small letter matching

  • Matches (operator is ?=) any string that has at least a small letter: e.g.: SADSa

Big letter matching

  • Matches (operator is ?=) any string that has at least a big letter: e.g.: SADSa

Consecutive numbers matching

  • Doesn't match (operator is ?!) strings that have consecutive numbers in them: e.g.: asdasd42dada

Sequential numbers matching (cannot be used at the same time with previous rule)

  • Doesn't match (operator is ?!) strings that have sequential numbers in them: e.g.: 12asdasd42dada
  • It will allow numbers that are separated by other letters e.g.: adasd1asd2asd3
  • It will allow consecutive numbers e.g.: ahadADS22dhsg44

Length of string matching (should be placed last)

  • This will match any string that is less than 8 characters

You can write better jQuery - A DRY approach

From this
    buttonClass: 'btn btn-default',
    buttonWidth: '100%',
    buttonClass: 'btn btn-default',
    buttonWidth: '100%',
    nonSelectedText: '---',
To This
<select class="js-multiselect" 
$('.js-multi-select).each(function () {
	let options = {};
		.map(property => options[property[0]] = property[1]);


And never go back for adjustments in the script file ever again.

Work with "unsafe" HTTPS on localhost in Chrome

If you work with HTTPS connections on your localhost development environment, you will often get an un-secure notification from Chrome, and this will be getting annoying.

To disable those notifications in Chrome type this in your address bar:


search for:

Allow invalid certificates for resources loaded from localhost.

and click on "Enable". Done!

As a precaution: You should use separate browsers for personal use and another for development. I do development in Chromium and my regular browsing in Safari.

Modifying .times built-in objects in JavaScript

Never modify JavaScript's standard built-in objects. That's what they say.

But you're at this hackathon stuck with JS missing Ruby's .times iterator and that's what JS's prototypes are for after all.

Here's how you do it:

String.prototype.times = function (n) {
    for (var i = 0; i < parseInt(this); i++) {
var myFunc = function () { console.log('Hello World') }


"Hello World"
"Hello World"