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string interpolation ruby

Caffeinated Developer answered on October 25, 2020 Popularity 10/10 Helpfulness 3/10

answer string interpolation ruby

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string interpolation ruby

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# to interpolate strings in ruby use #{}

name = "Edmond"
puts "Hello, #{name}!" # outputs "Hello, Edmond!"

Popularity 10/10 Helpfulness 3/10 Language ruby

Source: Grepper

Tags: ruby string-interpolation

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Contributed on Oct 25 2020

Caffeinated Developer

0 Answers Avg Quality 2/10

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# TECHNIQUE 1 - standard interpolation
name = 'david'

# standard interpolation using double quote is not lazy, it evaluates straight away
"who is #{name}"
# => who is david

# TECHNIQUE 2 - % instead of # can be used with lazy or late evalutation 
'who is %{name}' % { name: name }
# => who is david

# TECHNIQUE 3 - use eval/binding (from the Facets GEM) also supports  - % instead of # can be used with lazy or late evalutation
def interpolate(&str)
  eval "%{#{str.call}}", str.binding
end

interpolate { "who is #{name}" }
# => who is david

Popularity 9/10 Helpfulness 4/10 Language ruby

Source: github.com

Tags: eval

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Contributed on Jul 21 2022

klueless-io

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string interpolation ruby

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