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How to show the loading indicator in the top status bar
... sharedApplication].networkActivityIndicatorVisible = NO
So you can just call ShowNetworkActivityIndicator(); or HideNetworkActivityIndicator(); from within your app (as long as the header is included of course!).
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SQL Server - stop or break execution of a SQL script
...o database connection.
If you are NOT logged in as admin, the RAISEERROR() call itself will fail and the script will continue executing.
When invoked with sqlcmd.exe, exit code 2745 will be reported.
Reference: http://www.mydatabasesupport.com/forums/ms-sqlserver/174037-sql-server-2000-abort-whole...
How do you print in a Go test using the “testing” package?
...tput: log all tests as they are run. Also print all
text from Log and Logf calls even if the test succeeds.
Package testing
func (*T) Log
func (c *T) Log(args ...interface{})
Log formats its arguments using default formatting, analogous to Println, and records the text in the err...
How to get exit code when using Python subprocess communicate method?
...implemented: after setting up threads to read the child's streams, it just calls wait.
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Invoke a callback at the end of a transition
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// d3 v5
d3.select("#myid").transition().style("opacity","0").on("end", myCallback);
// old way
d3.select("#myid").transition().style("opacity","0").each("end", myCallback);
This demo uses the "end" event to chain many transitions in order.
The donut example that ships with D3 also uses this to...
What is the meaning of CTOR?
...t are named CTOR or ctor. What's the meaning of ctor? Why is such a region called ctor?
4 Answers
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Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?
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There is the beforeShowDay option, which takes a function to be called for each date, returning true if the date is allowed or false if it is not. From the docs:
beforeShowDay
The function takes a date as a parameter and must return an array with [0] equal to true/false indicating w...
Is it possible to reference one CSS rule within another?
...S function can be used to insert the value of a custom property (sometimes called a "CSS variable") instead of any part of a value of another property.
Example:
:root {
--main-bg-color: yellow;
}
@media (prefers-color-scheme: dark) {
:root {
--main-bg-color: black;
}
}
body {
backgr...
How can I dynamically create derived classes from a base class
... the argnames variable is the one passed to the
# ClassFactory call
if key not in argnames:
raise TypeError("Argument %s not valid for %s"
% (key, self.__class__.__name__))
setattr(self, key, value)
BaseClass.__init__(s...
Do you have to put Task.Run in a method to make it async?
...nology: "asynchronous" (async) means that it may yield control back to the calling thread before it starts. In an async method, those "yield" points are await expressions.
This is very different than the term "asynchronous", as (mis)used by the MSDN documentation for years to mean "executes on a ba...