maybeton =: 0&".^:('0'&-: +. 0 -.@-: 0&".) 0&".^:('0'&-: +. 0 -.@-: 0&".)
maybeton '3 22r4'
3 11r2
maybeton '3e2 22r4 two' NB. asking too much
300 5.5 0
maybeton 'two2'
two2
On Saturday, September 10, 2022 at 02:49:30 p.m. EDT, Pawel Jakubas
<[email protected]> wrote:
Dear J users,
What is the way to detect number that could be represented as integer,
float, could be negative, could assume scientific notation or rational. Is
there something like isNumber or isString ?
I would like to have something like this:
if. (detect_number i) do.
process number
else.
process string
and detect_number to survive inputs
i=: 2
i=: _2
i=: 2r3
i=: 2.3333
i=: 4.29497e9
i=: 'Two'
Thanks and cheers,
Pawel
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