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Python `if x is not None` or `if not x is None`?
...
There's no performance difference, as they compile to the same bytecode:
Python 2.6.2 (r262:71600, Apr 15 2009, 07:20:39)
>>> import dis
>>> def f(x):
... return x is not None
...
>>> dis.dis(f)
2 0 LOAD_FAST 0 (x)
3...
Deleting a Google App Engine application
...ey cannot currently be deleted. However you can delete the entire project by going to IAM --> Settings --> Shut Down. This button is in the header and a bit tricky to spot. It looks like this:
As of AppEngine SDK 1.2.6 it's possible to delete apps completely. But beware, the app-id won't...
Does MS SQL Server's “between” include the range boundaries?
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test_expression
Is the expression to test for in the range defined by begin_expression
and end_expression. test_expression
must be the same data type as both
begin_expression and end_expression.
NOT
Specifies that the result of the predicate be negated.
begin_expression
I...
Insert text into textarea with jQuery
... How about if the result is coming from a PHP page and handled by jQuery? (in between data is transmitted using Json)
– Abu Rayane
Apr 1 '16 at 6:31
...
How to generate a Dockerfile from an image?
...lp to resolve this problem running the image from your example? /usr/lib/ruby/gems/2.2.0/gems/excon-0.45.4/lib/excon/unix_socket.rb:14:in `connect_nonblock': Connection refused - connect(2) for /var/run/docker.sock (Errno::ECONNREFUSED) (Excon::Errors::SocketError)
– long
...
Oracle query to fetch column names
...quivalent for information_schema.COLUMNS is USER_TAB_COLS for tables owned by the current user, ALL_TAB_COLS or DBA_TAB_COLS for tables owned by all users.
Tablespace is not equivalent to a schema, neither do you have to provide the tablespace name.
Providing the schema/username would be of use if...
How can I export tables to Excel from a webpage [closed]
...the end: window.open('data:application/vnd.ms-excel,' + document.getElementById('table').outerHTML.replace(/ /g, '%20'));
– VSP
Jun 11 '12 at 14:04
6
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Position: absolute and parent height?
...eeping the children as position: absolute, you could do so with JavaScript by finding the height of the absolutely positioned children after they have rendered, and using that to set the height of the parent.
Alternatively, just use float: left/float:right and margins to get the same positioning ef...
How to Apply Corner Radius to LinearLayout
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Can an angular directive pass arguments to functions in expressions specified in the directive's att
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If you declare your callback as mentioned by @lex82 like
callback = "callback(item.id, arg2)"
You can call the callback method in the directive scope with object map and it would do the binding correctly. Like
scope.callback({arg2:"some value"});
without requir...