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CSV#each {|row| ... } -> nil (54646.0)

• 2.3.0

• インスタンスメソッド

各行に対してブロックを評価します。

...。

//emlist[例 CSV.new 時に :header => true を指定した場合][ruby]{
require "csv"

users = <<CSV
id,first name,last name,age
1,taro,tanaka,20
2,jiro,suzuki,18
3,ami,sato,19
4,yumi,adachi,21
CSV
csv = CSV.new(users, headers: true)
csv.each do |row|
p row
end

# => #<CSV::Row "id":"1" "fi...

..."tanaka" "age":"20">
# => #<CSV::Row "id":"2" "first name":"jiro" "last name":"suzuki" "age":"18">
# => #<CSV::Row "id":"3" "first name":"ami" "last name":"sato" "age":"19">
# => #<CSV::Row "id":"4" "first name":"yumi" "last name":"adachi" "age":"21">
//}

//emlist[例 CSV.new 時に :header => true...

...を指定しない場合][ruby]{
require "csv"

users = <<CSV
id,first name,last name,age
1,taro,tanaka,20
2,jiro,suzuki,18
3,ami,sato,19
4,yumi,adachi,21
CSV
csv = CSV.new(users)
csv.each do |row|
p row
end

# => ["id", "first name", "last name", "age"]
# => ["1", "taro", "tanaka", "20"]
# => ["...