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Best way to check if a URL is valid
...
You can use a native Filter Validator
filter_var($url, FILTER_VALIDATE_URL);
Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396), optionally with required components. Beware a valid URL may not specify the HTTP protocol http:// so further val...
What does -> mean in Python function definitions?
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And the information is available as a .__annotations__ attribute.
– Martijn Pieters♦
Jan 17 '13 at 13:06
9
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Error handling in Bash
...up() {
rm -f "${tempfiles[@]}"
}
trap cleanup 0
error() {
local parent_lineno="$1"
local message="$2"
local code="${3:-1}"
if [[ -n "$message" ]] ; then
echo "Error on or near line ${parent_lineno}: ${message}; exiting with status ${code}"
else
echo "Error on or near line ${pare...
Kotlin secondary constructor
...in with constructor but you need to skip default constructor class AuthLog(_data: String)
class AuthLog {
constructor(_data: String): this(_data, -1)
constructor(_numberOfData: Int): this("From count ", _numberOfData)
private constructor(_data: String, _numberOfData: Int)
}
For mo...
ASP.NET: This method cannot be called during the application's pre-start initialization stage
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Add this in your web.config (in the appSettings section):
<add key="enableSimpleMembership" value="false"/>
<add key="autoFormsAuthentication" value="false"/>
EDIT:
For the ones who ask why, it is a known issue described in the mvc 3 release not...
How to use JavaScript source maps (.map files)?
...using the minified code instead of the full, unminified version. When your app is in production, and has an error, the sourcemap will help take your ugly file, and will allow you to see the original version of the code. If you didn't have the sourcemap, then any error would seem cryptic at best.
Sam...
Get a random boolean in python?
...----------------------------------------------------------------
def create_values(fake):
""""""
print fake.boolean(chance_of_getting_true=50) # True
print fake.random_int(min=0, max=1) # 1
if __name__ == "__main__":
fake = Factory.create()
create_values(fake)
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how to create a file name with the current date & time in python?
... human readable.
from datetime import datetime
datetime.now().strftime("%Y_%m_%d-%I_%M_%S_%p")
'2020_08_12-03_29_22_AM'
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$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
Some guy called one of my Snipplr submissions "crap" because I used if ($_SERVER['REQUEST_METHOD'] == 'POST') instead of if ($_POST)
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How to drop column with constraint?
...'alter table tbloffers drop constraint ['+dc.NAME+N']'
from sys.default_constraints dc
JOIN sys.columns c
ON c.default_object_id = dc.object_id
WHERE
dc.parent_object_id = OBJECT_ID('tbloffers')
AND c.name = N'checkin'
IF @@ROWCOUNT = 0 BREAK
EXEC (@sql)
END
...