Today I Learned

Example password validation regex

• rules below can be concatenated

^(?=.*?[^a-zA-ZÄÖÜäöüß0-9])(?=.*?[0-9])(?=.*?[a-zäöüß])(?=.*?[A-ZÄÖÜ])(?!.*\d{2,}).{8,}$

Special character matching

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

(?=.*?[^a-zA-ZÄÖÜäöüß0-9])

Number matching

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

(?=.*?[0-9])

Small letter matching

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

(?=.*?[a-zäöüß])

Big letter matching

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

(?=.*?[A-ZÄÖÜ])

Consecutive numbers matching

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

(?!.*\d{2,})

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

(?!.*((12)|(23)|(34)|(45)|(56)|(67)|(78)|(90)|(01)))

Length of string matching (should be placed last)

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

.{8,}

From this

$('.multiSelectOne').multiselect({
    buttonClass: 'btn btn-default',
    buttonWidth: '100%',
    ...
});
$('.multiSelectTwo').multiselect({
    buttonClass: 'btn btn-default',
    buttonWidth: '100%',
    nonSelectedText: '---',
    ...
});

To This

<select class="js-multiselect" 
    data-include-select-all-option="true" 
    data-all-selected-text="All">
    <option></option>
</select>

$('.js-multi-select).each(function () {
	let options = {};
  
	Object.entries($(this).data())
		.map(property => options[property[0]] = property[1]);
    
  $(this).multiselect(options); 

}

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

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:

chrome://flags/

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.

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++) {
        n();
    }
}

var myFunc = function () { console.log('Hello World') }
"2".times(myFunc)

Output:

"Hello World"
"Hello World"

You can still write on a file that needs root permission, even if you forgot to open Vim with sudo:

:w !sudo tee %

The main trick here is using tee as a hack.