12 lines
359 B
Crystal
12 lines
359 B
Crystal
p "banana".starts_with? "ba" #=> true
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p "banana".starts_with? "na" #=> false
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p "banana".includes? "an" #=> true
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p "banana".includes? "xa" #=> false
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p "banana".ends_with? "na" #=> true
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p "banana".ends_with? "ba" #=> false
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p "banana".index "na" #=> 2
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p "banana".index "na", 3 #=> 4
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p "banana".index "na", 5 #=> nil
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