Calculate the similarity between two strings and return the matching characters:

<?php
echo similar_text("Hello World","Hello Peter");
?>

If we need to copy text to clipboard with break lines, than we need to use

textarea

instead of using

input

element

function copy(part1, part2) {

    // Creates textarea element 
    var textarea = document.createElement('textarea');

    // Puts the text into the textarea with breaklines
    textarea.value = part1 + "\n\n" + part2

    // Adds the element to the DOM
    document.body.appendChild(textarea);

    // Selects the text that we want to copy
    textarea.select();

    // Copies the selected text clipboard
    var result = document.execCommand('copy');

    // Removes the element from the DOM because we no longer need it
    document.body.removeChild(textarea);
    return result;
}

In order to upload several files at once we need to specify

multiple

attribute and append

[]

to input name

<input type="file" multiple="multiple" name="files[]" placeholder="Attach file"/>

To validate show errors on client side we have to append input name with

.*

Complete example of the

form-group

<div class="form-group">
    <label for="files">Attach File</label> &nbsp;
    <i id="add_new_file" class="ki ki-plus text-success pointer" title="Add New File"></i>
    <input type="file" class="form-control mb-2 {{ $errors->has('files.*') ? 'is-invalid' : '' }}" multiple="multiple" name="files[]" placeholder="Attach file"/>
    @if($errors->has('files.*'))
        <div class="invalid-feedback">
            <strong>{{ $errors->first('files.*') }}</strong>
        </div>
    @endif
</div>

Server side validation of mime types

public function rules()
{
    return [
        'comment' => 'sometimes|nullable|min:2|max:255',
        'files.*' => 'sometimes|nullable|mimes:pdf,docx,xlsx,pptx,rar,zip,png,jpg',
    ];
}

It's necessary the validator key

files

to be appended with the same symbols

.*

recommended

getBoundingClientRect

method

let element = document.getElementById("some-id"); // for jQuery $("#some-id")[0];

let elementRect = element.getBoundingClientRect();

returns

DOMRect

Object

tooltipRect: DOMRect
bottom: -5
height: 20
left: 1093.5625
right: 1149.59375
top: -25
width: 56.03125
x: 1093.5625
y: -25
__proto__: DOMRect
bottom: -5   //invoked
height: 20   //invoked
left: 1093.5625   //invoked
right: (...)
top: (...)
width: (...)
x: (...)
y: (...)

<div id="some-id">Text to copy</div>

copyToClipboard('some-id');

function copyToClipboard(containerid) {
  if (document.selection) {
    let range = document.body.createTextRange();
    range.moveToElementText(document.getElementById(containerid));
    range.select().createTextRange();
    document.execCommand("copy");
  } else if (window.getSelection) {
    let range = document.createRange();
    range.selectNode(document.getElementById(containerid));
    window.getSelection().removeAllRanges();
    window.getSelection().addRange(range);
    document.execCommand("copy");
    window.getSelection().removeAllRanges();
  }
}

The function gets data table, passes to recursive function to get associative array back. Encodes the array to JSON and returns back to user:

public function getCategoryTreeJSON()
{
    $query = "  SELECT
                    c1.id,
                    c1.name,
                    c1.parent_id,
                    (
                        SELECT
                            COUNT(c2.id) 
                        FROM
                            categories AS c2 
                        WHERE
                            c2.parent_id = c1.id
                    )
                    AS children_count 
                FROM
                    categories AS c1";

    $categoryDetails = json_decode(json_encode(DB::select($query)), true);
    
    $array_tree = $this->getCategoryTreeArray($categoryDetails);

    return json_encode($array_tree);
}

Recursive function that returns multi level associative array. Base case: when

children_count

is equal to zero.

public function getCategoryTreeArray($items, $parent_id = 0)
{
    $branch = [];
    $array_JSON = [];  

    foreach ($items as $item) {
        if ($item['parent_id'] == $parent_id) {

            if ($item['children_count'] > 0) {
                
                $array_JSON[] = [
                    'id'=>$item['id'],
                    'title'=>$item['name'],
                    'subs'=>$this->getCategoryTreeArray($items, $item['id'])
                ];
                
            } else {
                
                $array_JSON[] = [
                    'id'=>$item['id'],
                    'title'=>$item['name']
                ];
            }
            
        }
    }
    return $array_JSON;
}

laravel 8

You can define a route to this controller method like so:

use App\Http\Controllers\UserController;

Route::get('/users', [UserController::class, 'index']);
Route::get('/user/{id}', [UserController::class, 'show']);

Resource Controllers

resourceful route to the controller:

use App\Http\Controllers\PhotoController;
Route::resource('photos', PhotoController::class);

------------------------------------------------------------------------------------

laravel  7, 6, 5

You can define a route to this controller method like so:

Route::get('users', 'UserController@index');
   Route::get('user/{id}', 'UserController@show');

Resource Controllers

resourceful route to the controller:

Route::resource('photos', 'PhotoController');

========================================= This single route declaration creates multiple routes to handle a variety of actions on the resource. The generated controller will already have methods stubbed for each of these actions. Remember, you can always get a quick overview of your application's by running the

route:list

Artisan command.

Actions Handled By Resource Controller

Verb	URI	Action	Route Name
GET	/photos	index	photos.index
GET	/photos/create	create	photos.create
POST	/photos	store	photos.store
GET	/photos/{photo}	show	photos.show
GET	/photos/{photo}/edit	edit	photos.edit
PUT/PATCH	/photos/{photo}	update	photos.update
DELETE	/photos/{photo}	destroy	photos.destroy

After the command

git commit

->

i

- to jump into insert mode ->

esc

- takes us out of insert mode ->

:w

- to save written comment ->

:q

- to quit ------------------------

:w

and

:p

can be combined into

:wq

Lists logged in user's posts on dashboard

$user_id = auth()->user()->id;
$user = User::find($user_id);
return view('dashboard')->with('posts', $user->posts);

Displays the

author and last commit information

for each line in a file, helping track the origin of changes. Create a file and add some content:

echo "Line 1" > myfile.txt
echo "Line 2" >> myfile.txt
echo "Line 3" >> myfile.txt

Add and commit the file:

git add myfile.txt
git commit -m "Initial commit"

Make changes to the file and commit them

Make changes to the file and commit them

git blame myfile.txt

02fa3e76 (Luka 2023-06-01 20:07:40 +0400 1) Line 1
02fa3e76 (Luka 2023-06-01 20:07:40 +0400 2) Line 2
02fa3e76 (Luka 2023-06-01 20:07:40 +0400 3) Line 3
91354ada (Luka 2023-06-01 20:08:10 +0400 4) Line 4
91354ada (Luka 2023-06-01 20:08:10 +0400 5) Line 4
7ba66ba6 (Luka 2023-06-01 20:08:23 +0400 6) Line 5