Why when using DBM with Ruby, db[1] = 2 is ok, but print db[1] will give error?
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10-07-2019 - |
Question
On Ruby, when using DBM
require "dbm"
db = DBM.open("somedata")
db[1] = 2 # ok
p db[1] # gives error
does anyone know db[1] = 2 is ok, but printing out db[1] will give error?
If it requires db["1"] to be valid, then how come it doesn't apply to both cases but to one case only?
Solution
dbm convert key and value to string, so :
p db["1"]
give
"2"
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