如何将逗号分隔的字符串转换为数组？

Question

有没有办法将逗号分隔的字符串转换为Ruby中的数组？例如,如果我有这样的字符串:

"one,two,three,four"

我怎么把它转换成这样的数组？

["one", "two", "three", "four"]

Answer 1

使用该split方法执行此操作:

"one,two,three,four".split(',')
# ["one","two","three","four"]

如果要忽略前导/尾随空格,请使用:

"one , two , three , four".split(/\s*,\s*/)
# ["one", "two", "three", "four"]

如果要将多行(即CSV文件)解析为单独的数组:

require "csv"
CSV.parse("one,two\nthree,four")
# [["one","two"],["three","four"]]

Answer 2

require 'csv'
CSV.parse_line('one,two,three,four') #=> ["one", "two", "three", "four"]

Answer 3

>> "one,two,three,four".split ","
=> ["one", "two", "three", "four"]