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Direct casting vs 'as' operator?
...have to use the straight cast - the as won't work.
In the special case of converting to a string, every object has a ToString, so your third method may be okay if o isn't null and you think the ToString method might do what you want.
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Get list of all routes defined in the Flask app
... need to combine it with other answers above.
Rule's repr() takes care of converting the required arguments in the route.
def list_routes():
routes = []
for rule in app.url_map.iter_rules():
routes.append('%s' % rule)
return routes
The same thing using a list comprehension:...
NSUserDefaults - How to tell if a key exists
...ject, I set it as an object, as I could then test to see if it was nil:
//converting BOOL to an object so we can check on nil
[defaults setObject:@(_talkative) forKey:@"talkative"];
Then when I went to see if it existed, I used:
if ([defaults objectForKey:@"talkative"]!=nil )
{
Then I used t...
C# List to string with delimiter
Is there a function in C# to quickly convert some collection to string and separate values with delimiter?
2 Answers
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Does Ruby regular expression have a not match operator like “!~” in Perl?
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It's a lower-level solution. It's not always easy to convert regexps this way. On the other hand, this solution doesn't depend on top-level programming language ;)
– Konstantin
Mar 21 '18 at 12:43
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jQuery `.is(“:visible”)` not working in Chrome
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It seems jQuery's :visible selector does not work for some inline elements in Chrome. The solution is to add a display style, like "block" or "inline-block" to make it work.
Also note that jQuery has a somewhat different definition of what is visible ...
How do I clone a single branch in Git?
...ore useful than it makes out?".
"Undoing" a shallow clone is detailed at "Convert shallow clone to full clone" (git 1.8.3+)
# unshallow the current branch
git fetch --unshallow
# for getting back all the branches (see Peter Cordes' comment)
git config remote.origin.fetch refs/heads/*:refs/remotes/...
SQL Server: Maximum character length of object names
...lowing script contained in the blog post before:
DECLARE @i NVARCHAR(800)
SELECT @i = REPLICATE('A', 116)
SELECT @i = 'CREATE TABLE #'+@i+'(i int)'
PRINT @i
EXEC(@i)
share
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improve this answer
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XPath with multiple conditions
What XPath can I use to select any category with a name attribute specified and any child node author with the value specified.
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Determine what attributes were changed in Rails after_save callback?
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The "selected" answer didn't work for me. I'm using rails 3.1 with CouchRest::Model (based on Active Model). The _changed? methods don't return true for changed attributes in the after_update hook, only in the before_update hook. ...