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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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Task/String-matching/CoffeeScript/string-matching.coffee Normal file
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matchAt = (s, frag, i) ->
s[i...i+frag.length] == frag
startsWith = (s, frag) ->
matchAt s, frag, 0
endsWith = (s, frag) ->
matchAt s, frag, s.length - frag.length
matchLocations = (s, frag) ->
(i for i in [0..s.length - frag.length] when matchAt s, frag, i)
console.log startsWith "tacoloco", "taco" # true
console.log startsWith "taco", "tacoloco" # false
console.log startsWith "tacoloco", "talk" # false
console.log endsWith "tacoloco", "loco" # true
console.log endsWith "loco", "tacoloco" # false
console.log endsWith "tacoloco", "yoco" # false
console.log matchLocations "bababab", "bab" # [0,2,4]
console.log matchLocations "xxx", "x" # [0,1,2]