21 lines
867 B
Raku
21 lines
867 B
Raku
# Using string methods:
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$haystack.starts-with($needle) # True if $haystack starts with $needle
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$haystack.contains($needle) # True if $haystack contains $needle
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$haystack.ends-with($needle) # True if $haystack ends with $needle
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# Using regexes:
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so $haystack ~~ /^ $needle / # True if $haystack starts with $needle
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so $haystack ~~ / $needle / # True if $haystack contains $needle
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so $haystack ~~ / $needle $/ # True if $haystack ends with $needle
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# Using substr:
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substr($haystack, 0, $needle.chars) eq $needle # True if $haystack starts with $needle
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substr($haystack, *-$needle.chars) eq $needle # True if $haystack ends with $needle
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# Bonus task:
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$haystack.match($needle, :g)».from; # List of all positions where $needle appears in $haystack
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$haystack.indices($needle :overlap); # Also find any overlapping instances of $needle in $haystack
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