Today I Learned

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Check if string starts with prefixes

In Ruby there is this neat little method String#start_with? that takes in as many prefixes as you want, and returns true if the string starts with any of them.

greeting = "hello there"

greeting.start_with?("general", "kenobi") # => false
greeting.start_with?("heaven", "hell")    # => true

Side notes:

  • Case sensitive
  • Accepts regular expressions
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