Regexp 方法

以下这些 Ruby 核心方法都可以接受一个正则表达式作为参数

• Enumerable#all?

• Enumerable#any?

• Enumerable#grep

• Enumerable#grep_v

• Enumerable#none?

• Enumerable#one?

• Enumerable#slice_after

• Enumerable#slice_before

• Regexp#=~

• Regexp#match

• Regexp#match?

• Regexp.new

• Regexp.union

• String#=~

• String#[]=

• String#byteindex

• String#byterindex

• String#gsub

• String#gsub!

• String#index

• String#match

• String#match?

• String#partition

• String#rindex

• String#rpartition

• String#scan

• String#slice

• String#slice!

• String#split

• String#start_with?

• String#sub

• String#sub!

• Symbol#=~

• Symbol#match

• Symbol#match?

• Symbol#slice

• Symbol#start_with?