isHex | Tells you if a js string is a valid hex code
kandi X-RAY | isHex Summary
kandi X-RAY | isHex Summary
Tells you if a js string is a valid hex code.
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Top functions reviewed by kandi - BETA
- Checks if a string is a hexadecimal
- Check if input is a hex string
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Trending Discussions on isHex
QUESTION
Why does the first one work but not the second one? Is there anything to worry about, when converting objects to structs?
...ANSWER
Answered 2022-Jan-16 at 12:27Because as
operator returns null
if type check fails:
The expression of the form
E as T
whereE
is an expression that returns a value andT
is the name of a type or a type parameter, produces the same result as:E is T ? (T)(E) : (T)null
except thatE
is only evaluated once.
Which can't be done if T
is non-nullable value type (so compiler emits the error). Using nullable value type as T
will work:
QUESTION
It's a way to enable and disable a WPF Converter? Either programmatically or directly from WPF binding a checkbox control to it.
I have this Textbox and Checkbox in my application:
When Checkbox is unchecked I can enter any numeric value, but when I Check the checkbox I want to enable this converter:
...ANSWER
Answered 2021-Aug-06 at 13:42As usual in WPF, there are many ways to do this.
One way is to use a trigger to change the binding given to Text
, something like:
QUESTION
Here is the code:
...ANSWER
Answered 2021-Jan-29 at 01:08You've got two problems. First, your function as defined takes an array of char
pointers and yet you're passing in a single const char*
. Second, isxdigit
takes a single char
and not an array of char*
. You should change your function to
QUESTION
So i'm really new to C, but I have this homework and I can't figure out what's wrong
...ANSWER
Answered 2020-Oct-01 at 11:32#define ARR_LEN 4
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