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#REDIRECT [[Letter frequency]]
{{task|Count letters}}
;Task:
Count the letters used in a sentence, by code point, generating a hash or associative array, or appropriate construct for the language.
Use the following. The Greek letters are random and don't spell anything that I know of.
fuzzy furry kittens
ασδ ξκλ ασδ ξα
<br><br>
=={{header|langur}}==
{{works with|langur|0.7.0}}
<lang langur>var .countLetters = f(.s) {
for[=h{}] .s2 in split(replace(.s, RE/\P{L}/)) {
_for[.s2; 0] += 1
}
}
writeln .countLetters("fuzzy furry kittens")
writeln .countLetters("ασδ ξκλ ασδ ξα") # random Greek letters</lang>
{{works with|langur|0.6.11}}
<lang langur>var .countLetters = f(.s) {
foldfrom(
f(var .h2, .s2) { .h2[.s2; 0] += 1; .h2 },
h{},
split(replace(.s, RE/\P{L}/)),
)
}</lang>
{{out}}
<pre>h{"f": 2, "u": 2, "z": 2, "y": 2, "r": 2, "k": 1, "i": 1, "t": 2, "e": 1, "n": 1, "s": 1}
h{"α": 3, "σ": 2, "δ": 2, "ξ": 2, "κ": 1, "λ": 1}</pre>
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