String#unpack

unpack(template, offset: 0) → array

# File tmp/rubies/ruby-3.3.0/pack.rb, line 19
def unpack(fmt, offset: 0)
  Primitive.pack_unpack(fmt, offset)
end

Extracts data from self, forming objects that become the elements of a new array; returns that array. See Packed Data.

Ruby version changes

3.3
- String#unpack now raises ArgumentError for unknown directives. [Bug #19150]
3.1
- String#unpack and String#unpack1 now accept an offset: keyword argument to start the unpacking after an arbitrary number of bytes have been skipped. If offset is outside of the string bounds ArgumentError is raised. [Feature #18254]

See also #unicode_normalized? #unpack1 #unicode_normalize! #upcase also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0