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Count occurrences of a substring: Difference between revisions
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=={{header|Lua}}==
Solution 1:
<lang Lua>function countSubstring (s1, s2)▼
return select(2, s1:gsub(s2, ""))
end
print(countSubstring("the three truths", "th"))
print(countSubstring("ababababab", "abab"))</lang>
<pre>3
2</pre>
Solution 2:
<lang Lua>function countSubstring(s1, s2)
local count = 0
for eachMatch in s1:gmatch(s2) do
count = count + 1
end
return count
end
print(countSubstring("the three truths", "th"))
print(countSubstring("ababababab", "abab"))</lang>
<pre>3
2</pre>
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