On 13/07/10 15:18, epanda wrote:
Hi,
Is it possible to declare a dynamic key in a dictionary ?
eg :
let mycounter = 0
let mycounter += 1
let myDict = { mycounter : "foo" }
let mycounter += 1
the above works. myDict is now {'1': 'foo'}
let myDict += { mycounter : "foo" }
but this doesn't (the += operator is only defined for Numbers or
Floats). What you should use is (using a different value for the new key):
:let myDict[mycounter] = "bar"
or
:call extend(myDict, { mycounter : "bar" })
which both result in
:echo myDict
{'0': 'foo', '1': 'bar'}
There is no "dynamic key" involved: the key stored in the dictionary is
the value of the variable at the time the key-value pair was stored. You
can just as well retrieve the value corresponding to a key held in a
variable, as in
:let value = dictionary[key]
where value and key are String variables (or integer variables which Vim
will use as if Strings) while dictionary is a Dictionary variable.
Thanks
Best regards,
Tony.
--
"A raccoon tangled with a 23,000 volt line today. The results blacked
out 1400 homes and, of course, one raccoon."
-- Steel City News
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