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How to use Swift @autoclosure
...
Consider a function that takes one argum>me m>nt, a simple closure that takes no argum>me m>nt:
func f(pred: () -> Bool) {
if pred() {
print("It's true")
}
}
To call this function, we have to pass in a closure
f(pred: {2 > 1})
// "It's true"
If w...
Selecting data fram>me m> rows based on partial string match in a column
I want to select rows from a data fram>me m> based on partial match of a string in a column, e.g. column 'x' contains the string "hsa". Using sqldf - if it had a like syntax - I would do som>me m>thing like:
...
How to override to_json in Rails?
...
You are getting Argum>me m>ntError: wrong number of argum>me m>nts (1 for 0) because to_json needs to be overridden with one param>me m>ter, the options hash.
def to_json(options)
...
end
Longer explanation of to_json, as_json, and rendering:
In Active...
How To Create Table with Identity Column
... NOT NULL,
[EmployeeID] [varchar](50) NOT NULL,
[DateStamp] [datetim>me m>] NOT NULL,
CONSTRAINT [PK_History] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
) ON [PRIMARY]
...
What does “atomic” m>me m>an in programming?
...es the first 32 bits, and a second one which writes the last 32 bits. That m>me m>ans that another thread might read the value of foo, and see the interm>me m>diate state.
Making the operation atomic consists in using synchronization m>me m>chanisms in order to make sure that the operation is seen, from any othe...
How to correctly iterate through getElem>me m>ntsByClassNam>me m>
... a NodeList is:
nodeItem = nodeList.item(index)
Thus:
var slides = docum>me m>nt.getElem>me m>ntsByClassNam>me m>("slide");
for (var i = 0; i < slides.length; i++) {
Distribute(slides.item(i));
}
I haven't tried this myself (the normal for loop has always worked for m>me m>), but give it a shot.
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How do I read an entire file into a std::string in C++?
...
One way is to flush the stream buffer into a separate m>me m>mory stream, and then convert that to std::string:
std::string slurp(std::ifstream& in) {
std::ostringstream sstr;
sstr << in.rdbuf();
return sstr.str();
}
This is nicely concise. However, as noted ...
Implem>me m>nting Fast and Efficient Core Data Import on iOS 5
... wait until the end to save. It has its own thread, and it will help keep m>me m>mory down as well.
You wrote:
Then at the end of the import process, I save on the master/parent
context which, ostensibly, pushes modifications out to the other child
contexts including the main context:
In your...
When to use , tag files, composite components and/or custom components?
...ude> and <ui:decorate>) if you want to split main page layout fragm>me m>nts into reuseable templates. E.g. header, m>me m>nu, content, footer, etc.
Examples:
How to include another XHTML in XHTML using JSF 2.0 Facelets?
What is the real conceptual difference between ui:decorate and ui:include?
How ...
Iterate over object keys in node.js
...ually.
The only solution is finding a node module that extends V8 to implem>me m>nt iterators (and probably generators). I couldn't find any implem>me m>ntation. You can look at the spidermonkey source code and try writing it in C++ as a V8 extension.
You could try the following, however it will also load a...