xxxxxxxxxx
let user = {
name:'ali',
age :18,
class:11,
fruits:['apple','orange','plum']
}
console.log(user.fruits[0])//apple
xxxxxxxxxx
const newspapers = [
{
name: 'thetimes',
address: 'https://www.thetimes.co.uk/environment/climate-change'
},
{
name: 'gaurdian',
address: 'https://www.theguardian.com/environment/climate-crisis'
},
{
name: 'telegraph',
address: 'https://www.telegraph.co.uk/climate-change'
}
]
xxxxxxxxxx
<?php
// array of objects and DB selection CORRECTLY:
// cast that converts associative array to stdClass object
$databasesRaw = [
(object) ['Database' => 'performance_schema'],
(object) ['Database' => 'mysql'],
(object) ['Database' => 'ADMIN2'],
(object) ['Database' => 'ADMIN1'],
(object) ['Database' => 'performance_schema'],
(object) ['Database' => 'sys'],
(object) ['Database' => 'ADMIN0']
];
// select the first DB
$databases = array_filter($databasesRaw, function ($db) {
return !in_array($db->Database, ['information_schema', 'mysql', 'performance_schema', 'sys']);
});
usort($databases, function ($a, $b) {
return strcmp($a->Database, $b->Database);
});
print_r($databases);
echo 'DB SELEZIONATO: ' . $databases[0]->Database;
xxxxxxxxxx
{
"color": "purple",
"type": "minivan",
"registration": new Date('2012-02-03'),
"capacity": 7
}
xxxxxxxxxx
cars.some(car => car.color === "red" && car.type === "cabrio");
// output: true
cars.every(car => car.capacity >= 4);
// output: false