Ruby Hashのキーと値のペアを配列に変換する
環境
Windows10 Home 64bit
ruby 3.1.2p20
構文
result = hash.to_a
to_aメソッドは、呼び出したハッシュ(Hash)のキーと値のペア(key-value pair)をそのまま
配列(array)に変換します。
使用例
cft = {
"on" => 21,
"bt" => 32,
"ce" => 35,
"mr" => 84,
"fe" => 95,
}
result = cft.to_a
p result
cft = {
"on" => 21,
"bt" => 32,
"ce" => 35,
"mr" => 84,
"fe" => 95,
}
result = cft.to_a
p result
cft = {
"on" => 21,
"bt" => 32,
"ce" => 35,
"mr" => 84,
"fe" => 95,
}
result = cft.to_a
p result
実行結果
[[“on", 21], [“bt", 32], [“ce", 35], [“mr", 84], [“fe", 95]]