mdestafadilah

What is closure in JavaScript and how does it work?

Answer: Closure is a feature in JavaScript where a function has access to its outer scope even after the outer function has returned. It is created when a function is defined inside another function, and the inner function retains access to the variables in the outer function's scope.

Can you explain hoisting in JavaScript?

Answer: Hoisting is a behavior in JavaScript where variable and function declarations are moved to the top of their scope, regardless of where they are declared in the code. This means that variables and functions can be called before they are declared, but the value of variables will be undefined until they are assigned a value.

What is the difference between == and === in JavaScript?

mdestafadilah

```
CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';

GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' WITH GRANT OPTION;

CREATE USER 'username'@'%' IDENTIFIED BY 'password';

GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' WITH GRANT OPTION;

FLUSH PRIVILEGES;

mdestafadilah

https://segmentfault.com/a/1190000041225133/en

mdestafadilah

https://dev.to/paulvermeer2021/turn-any-form-into-a-stepper-form-wizard-with-ui-hooks-context-react-hook-form-and-yup-56j6
https://codesandbox.io/s/cranky-monad-52bh5w

https://blog.logrocket.com/building-multi-step-wizards-with-formik-and-react-query/
https://codesandbox.io/s/wizard-form-with-formik-forked-n7uxd9?file=/package.json

mdestafadilah

$this->load->helper(array('url','file','download'));
        $this->load->library('zip');
        
        $website = $this->load->database('website', TRUE); // the TRUE paramater tells CI that you'd like to return the database object.

        $DBUSER=$website->username;
        $DBPASSWD=$website->password;
        $DATABASE=$website->database;
        $HOSTNAME=$website->hostname;

mdestafadilah

system\database\drivers\mysqli\mysqli_utility.php
```
	/**
	 * MySQLi Export
	 *
	 * @access  private
	 * @param   array   Preferences
	 * @return  mixed
	 * @source https://stackoverflow.com/a/44667873
	 */

mdestafadilah

source:
1. https://medium.com/@sheniff/using-shell-to-rename-files-in-bulk-ee657f1a06
2. https://gist.github.com/mustafaturan/32df16bb4c49fbd837f777000f4b9aa2?permalink_comment_id=3837386#gistcomment-3837386

How to:
1. Create file, ex: renamejstojsx.sh copy paste from source:#1
2. In your project open bash or Cmder as Terminal execution
3. Run ```bash renamejstojsx.sh```
4. Done, sruput coffe again.

mdestafadilah

https://stackoverflow.com/a/1296398/1852097
https://stackoverflow.com/a/67553979/1852097

```javascript
var dateOffset = (24*60*60*1000) * 12775; //5 days
var myDate = new Date();
console.log(dateOffset);
```

https://unitconverter.io/years/days/35

mdestafadilah

    const schema = yup.object().shape({
        filelamaran: yup.mixed().test('fileSize', "File Lamaran terlalu besar bro.. kurang dari < 500Kb ya!", val => validasiSizeFile(val) === true).test('fileType',"File harus PDF bro.. Ukuran PDF < 500Kb ya!", val => validasiTipeFile(val) === true).nullable(),
        filefoto: yup.mixed().test('fileSize', "File Foto terlalu besar bro.. kurang dari < 500Kb ya!", val => validasiSizeFile(val) === true).test('fileType',"File harus PDF bro.. Ukuran PDF < 500Kb ya!", val => validasiTipeFile(val) === true).nullable(),
        fileriwayat: yup.mixed().test('fileSize', "File Riwayat terlalu besar bro.. kurang dari < 500Kb ya!", val => validasiSizeFile(val) === true).test('fileType',"File harus PDF bro.. Ukuran PDF < 500Kb ya!", val => validasiTipeFile(val) === true).nullable(),
        fileijazah: yup.mixed().test('fileSize', "File Ijazah terlalu besar bro.. kurang dari < 500Kb ya!", val => validasiSizeFile(val) === true).test('fileType',"File harus PDF bro.. Ukuran PDF < 500

mdestafadilah

# source: https://stackoverflow.com/a/33919648
# using for php < 5.4 if server using > 5.5 please, use array_columnt instead
if (!function_exists('arr_kolom')) {
  function arr_kolom(array $array, $columnKey, $indexKey = null)
  {
      $result = array();
      foreach ($array as $subArray) {
          if (!is_array($subArray)) {
              continue;
          } elseif (is_null($indexKey) && array_key_exists($columnKey, $subArray)) {