Method: Enumerable#grep

Defined in:
enum.c

#grep(pattern) ⇒ Array #grep(pattern) {|obj| ... } ⇒ Array

Returns an array of every element in enum for which Pattern === element. If the optional block is supplied, each matching element is passed to it, and the block’s result is stored in the output array.

(1..100).grep 38..44   #=> [38, 39, 40, 41, 42, 43, 44]
c = IO.constants
c.grep(/SEEK/)         #=> ["SEEK_END", "SEEK_SET", "SEEK_CUR"]
res = c.grep(/SEEK/) {|v| IO.const_get(v) }
res                    #=> [2, 0, 1]

Overloads:

  • #grep(pattern) ⇒ Array

    Returns:

  • #grep(pattern) {|obj| ... } ⇒ Array

    Yields:

    • (obj)

    Returns:



65
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67
 
# File 'enum.c', line 65

static VALUE
enum_grep(obj, pat)
VALUE obj, pat;