| public static map ( array | Traversable $traversable, callable $fn ) : array | ||
| $traversable | array | Traversable | |
| $fn | callable | function($value, $key) => $newValue |
| return | array | |
public static function map($traversable, callable $fn)
{
self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
$map = [];
foreach ($traversable as $key => $value) {
$map[$key] = $fn($value, $key);
}
return $map;
} private function withModifiers($types)
{
return array_merge(Utils::map($types, function ($type) {
return Type::listOf($type);
}), Utils::map($types, function ($type) {
return Type::nonNull($type);
}), Utils::map($types, function ($type) {
return Type::nonNull(Type::listOf($type));
}));
}
