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(Built-in) way in JavaScript to check if a string is a valid number
...ce versa. So to find out if a string is really exactly and only a number, call both functions and see if they both return true:
function isNumber(str) {
if (typeof str != "string") return false // we only process strings!
// could also coerce to string: str = ""+str
return !isNaN(str) &&...
Convert pem key to ssh-rsa format
...case someone is wondering how to compile this (I was), here's the compiler call: gcc -o pubkey2ssh pubkey2ssh.c -lcrypto
– Andreas Gohr
Feb 20 '11 at 14:10
...
How to properly assert that an exception gets raised in pytest?
...n extract details from it. For example, if you want to check the exception call stack or another nested exception inside.
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count vs length vs size in a collection
...ber of elements - check source/documentation.
Capacity() - used to specifically refer to allocated space in collection and not number of valid elements in it. If type has both "capacity" and "size" defined then "size" usually refers to number of actual elements.
I think the main point is down to h...
Batch file: Find if substring is in string (not in a file)
...arch, you would have to do this:
SET searchString=abcd1234
SET key=cd123
CALL SET keyRemoved=%%searchString:%key%=%%
IF NOT "x%keyRemoved%"=="x%searchString%" (
ECHO Contains.
)
Note: You can take the two variables as arguments.
...
Calculating the difference between two Java date instances
...imeUnit.convert(diffInMillies,TimeUnit.MILLISECONDS);
}
And then can you call:
getDateDiff(date1,date2,TimeUnit.MINUTES);
to get the diff of the 2 dates in minutes unit.
TimeUnit is java.util.concurrent.TimeUnit, a standard Java enum going from nanos to days.
Human readable diff (without li...
Why can I access TypeScript private members when I shouldn't be able to?
...
More accurately to call them constructor variables, not private. Those are not visible in prototype methods.
– Roman M. Koss
Dec 7 '16 at 0:55
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Can two applications listen to the same port?
... file descriptor. the application responds to that event with an accept() call, which creates a new file descriptor associated to the specific stream, leaving the original server descriptor free to get new connections from clients
– Javier
Dec 16 '10 at 12:00
...
Embedding ads on Android app?
...question.
They both offer an SDK that provided a GUI element which is basically a web view that retrieves ads from their servers.
Overall both ad platforms have given me a good experience. The click through rate has been almost identical between the two but I am sticking with Adsense because in m...
SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)
...
Basically you have to codesign your .xcttest folder by adding the following as a run script in your test target.
codesign --verify --force --sign "$CODE_SIGN_IDENTITY" "$CODESIGNING_FOLDER_PATH"
I got a lot of -34018 errors wh...