Ruby Table.push用法及代码示例

push(*rows_or_arrays) → self

追加多行的快捷方式。相当于：

rows.each {|row| self << row }

每个参数可以是 CSV::Row 对象或数组：

source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
table = CSV.parse(source, headers: true)
rows = [
  CSV::Row.new(table.headers, ['bat', 3]),
  ['bam', 4]
]
table.push(*rows)
table[3..4] # => [#<CSV::Row "Name":"bat" "Value":3>, #<CSV::Row "Name":"bam" "Value":4>]