CODEWITHSUNDEEP
rubystruct
Adam
Adam

Reputation: 85

Create Struct from a String?

I need to create a Struct with multiple fields (based on a long string). Here is what I have so far:

s = "a1|b2|c3|"
a = s.split("|")
b = []
a.each { |e| 
  b.push(e.to_sym)
}

Str = Struct.new(*b)

Anyway to make it shorter?

Upvotes: 0

Views: 75

Answers (2)

Chuck
Chuck

Reputation: 237110

The pattern b = []; a.each {|e| b << (do something with e) } can always be shortened to a use of map. So:

s = "a1|b2|c3"
b = s.split('|').map {|e| e.to_sym }

Or, even more tersely:

s = "a1|b2|c3"
b = s.split('|').map(&:to_sym)

Upvotes: 1

sawa
sawa

Reputation: 168269

Here it is:

Str = Struct.new(*"a1|b2|c3|".split("|").map(&:to_sym))

Upvotes: 2

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