public function testMap()
{
$arr = array('John' => 'Vocals', 'Paul' => 'Bass', 'George' => 'Lead', 'Ringo' => 'Drums');
$arr = PHPArray::map($arr, function ($item) {
return \strrev($item);
});
$this->assertEquals('ssaB', $arr['Paul']);
$this->assertEquals('smurD', $arr['Ringo']);
}
/**
* Returns a new list populated with each value after a given callback
* function is applied
* @param \Closure $callback
* @return \static
*/
public function map(\Closure $callback)
{
return new static(PHPArray::map($this->_Arr, $callback));
}