함수 keys()

keys

array_keys

1 JavaScript

var member = { 'ID': '102', 'Name': 'YONEZAWA Akinori', 'Address': 'Naha, Okinawa' };
console.log(Object.keys(member));
// ["ID", "Name", "Address"]

2 PHP

$member = array( 'ID'=>102, 'Name'=>'YONEZAWA Akinori', 'Address'=>'Naha, Okinawa' );
$keys = array_keys($member);
print_r($keys);
# Array
# (
#     [0] => ID
#     [1] => Name
#     [2] => Address
# )

3 Python

member = { 'ID' : 102, 'Name' : 'YONEZAWA Akinori', 'Address' : 'Naha, Okinawa' }
print( member.keys() )
# ['Address', 'ID', 'Name']

4 Ruby

member = { "ID" => 102, "Name" => "YONEZAWA Akinori", "Address"=> "Naha, Okinawa" }
puts member.keys
# ID
# Address
# Name

5 같이 보기

• each_key
• foreach
• Dictionary
• values
• items