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Remove all but numbers from NSString
I have an NSString (phone number) with some parenthesis and hyphens as some phone numbers are formatted. How would I remove all characters except numbers from the string?
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Add a custom attribute to a Laravel / Eloquent model on load?
...le to add a custom attribute/property to an Laravel/Eloquent model when it is loaded, similar to how that might be achieved with RedBean's $model->open() method.
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Is there a JavaScript strcmp()?
Can anyone verify this for me? JavaScript does not have a version of strcmp(), so you have to write out something like:
5 A...
About catching ANY exception
...dn't:
try:
do_something()
except:
print "Caught it!"
However, this will also catch exceptions like KeyboardInterrupt and you usually don't want that, do you? Unless you re-raise the exception right away - see the following example from the docs:
try:
f = open('myfile.txt')
s = f....
How to get div height to auto-adjust to background size?
...cient, solution would be to include the image under an img element set to visibility: hidden;. Then make the background-image of the surrounding div the same as the image.
This will set the surrounding div to the size of the image in the img element but display it as a background.
<div style=...
Is there a difference between “throw” and “throw ex”?
...fference between those two are already. (why do I have to even mention this...)
10 Answers
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How can I filter a date of a DateTimeField in Django?
... datetime.datetime.combine(date, datetime.time.max))}
Because it is quite verbose there are plans to improve the syntax using __date operator. Check "#9596 Comparing a DateTimeField to a date is too hard" for more details.
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
...%JAVA_HOME%\lib\security\cacerts.
First you can check if your certificate is already in the truststore by running the following command:
keytool -list -keystore "%JAVA_HOME%/jre/lib/security/cacerts" (you don't need to provide a password)
If your certificate is missing, you can get it by downloadi...
Initializing a struct to 0
If I have a struct like this:
3 Answers
3
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In MySQL queries, why use join instead of where?
... from table "A" to table "B". The traditional (ANSI-89) means of doing this is to:
List the tables involved in a comma separated list in the FROM clause
Write the association between the tables in the WHERE clause
SELECT *
FROM TABLE_A a,
TABLE_B b
WHERE a.id = b.id
Here's the que...