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@try - catch block in Objective-C
...ective-C exceptions are what they are called. Exceptions! Don’t use them for error handling. It’s not their proposal.
Just check the length of the string before using characterAtIndex and everything is fine....
share
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Update all values of a column to lowercase
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UPDATE table_name SET tag = BINARY LOWER(tag) for case insensitive matching.
– Enyby
Jan 19 '18 at 12:39
2
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Regex to match any character including new lines
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For more info regarding @Zymotik's comment, see: stackoverflow.com/questions/1068280/…
– Jacob van Lingen
Jul 19 '16 at 7:14
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Get first day of week in SQL Server
...d date as the first day of the week. However, the standard technique I use for rounding off dates does not appear to work correctly with weeks (though it does for days, months, years, quarters and any other timeframe I've applied it to).
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How do I ALTER a PostgreSQL table and make a column unique?
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This doesn't seem to work for something like: ALTER TABLE actions ADD CONSTRAINT actions_unique_constraint UNIQUE (payload::text, name); or ALTER TABLE actions ADD CONSTRAINT actions_unique_constraint UNIQUE ((payload::text), nam...
Pushing app to heroku problem
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This worked for the same problem with the Python app. Except I also had to heroku create after git remote rm heroku (my problem was probably slightly different).
– Patrick Williams
Mar 25 '16 at 21:...
What does @: (at symbol colon) mean in a Makefile?
...ke writing a function in Python that only contains pass. It can be useful for stubbing blocks of code for copy/paste but they generally shouldn't exist for long. When stubbing this way the file would still compile, pass linting, etc.
– boweeb
May 21 '19 at 18...
How to delete a stash created with git stash create?
...git stash , you want git stash drop or git stash drop stash@{n}. See below for more details.
You don't need to delete a stash created with git stash create. From the docs:
Create a stash entry (which is a regular commit object) and return its object name, without storing it anywhere in the re...
How do I access this object property with an illegal name?
...ng), this code is taken almost verbatim from Zend_Config and will convert for you.
public function toArray()
{
$array = array();
foreach ($this->_data as $key => $value) {
if ($value instanceof StdClass) {
$array[$key] = $value->toArray();
} else {
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Static implicit operator
...as the argument, and returning a valid XElement as the result.
It's a way for you as a developer to tell the compiler:
"even though these look like two totally unrelated types, there is actually a way to convert from one to the other; just let me handle the logic for how to do it."
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