emre-edu-tech

// Here every then() method returns a new promise
// then() method always yields a promise after being executed, this way chaining is possible
// We can say here that every then() methods waits the previous promise to resolve
// Here the error handling is also easy. If any prior promise fails, catch() method will be triggered
fetch('https://api.openweathermap.org/data/2.5/weather?q=London,uk')
.then(response => {
    return response.json();
})
.then(data => {
    console.log(data);

emre-edu-tech

let baseNumber = 10;

addAnotherNumber(5);

baseNumber = 20;

// function closures have access to variable NAMES not the VALUES
// value is only checked when the function runs
function addAnotherNumber(num) {
    setTimeout(function() {

emre-edu-tech

let result = 1;

// here this declaration must come first before using it
// it is a function variable declaration so it should be declared before its usage
const addNumber = function (numToAdd) {
    result = result + numToAdd;
    return result;
}

emre-edu-tech

function get_user_geo_country(){
	if(is_checkout()) {
		$geo      = new WC_Geolocation(); // Get WC_Geolocation instance object
        $user_ip  = $geo->get_ip_address(); // Get user IP
        $user_geo = $geo->geolocate_ip( $user_ip ); // Get geolocated user data.
        $country  = $user_geo['country']; // Get the country code
	    if($country != 'DE') {
		    ?>
            <script src="https://cdn.jsdelivr.net/npm/sweetalert2@9"></script>
		    <script>

emre-edu-tech

box-shadow: 3px 0 0 0 #000,
    0 3px 0 0 #000,
    3px 3px 0 0 #000,
    3px 0 0 0 #000 inset,
    0 3px 0 0 #000 inset;