StringFix | C helper for string manipulation | Computer Vision library
kandi X-RAY | StringFix Summary
kandi X-RAY | StringFix Summary
C++ helper for string manipulation (trim, to_lower, split, explode etc…). For in-depth explanation please see function description at:
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QUESTION
Suppose I want to check the string's length, in 2 ways (fixed or range):
...ANSWER
Answered 2020-May-10 at 16:27You're so close. :-) You're asking for the type of the value of a property that you expect to be there (typeof schema.length
). To implement a type guard, you want to ask if the property is there:
QUESTION
I am currently running into an issue where I set 2 variables in initState
(_stringVariable
and _listVariable
from the variables in the stateful widget (widget.stringFixed
, widget.listedFix
). I then update the variables that were initialised in initState
in a setState
. When I set the string, this changes _stringVariable but stringFixed remains fixed (which is what I expect) but when I call .add
on listVariable
it adds an element but also changes widget.listFixed
and adds the same element...
DartPad with code https://dartpad.dev/e2720e94fc074316cdcd6976f64b906b
Initial screen
After some button presses, I would expect the "Should not update" list to be [1,2] and should not have had any new elements added to it as this was not the array that I called .add
on
ANSWER
Answered 2020-Mar-04 at 22:39Worked it out!
The setting of one list to another using =
is wrong - guess something to do with references to variables.
If I change
_listVariable = widget.listFixed;
to
_listVariable = []..addAll(widget.listFixed);
QUESTION
I'm using very simple code :
...ANSWER
Answered 2019-Mar-18 at 15:28trainSetDF = simplePipe.fit_transform(inputDF.iloc[:4][:])
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