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How to get the last N records in mongodb?
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Look under Querying: Sorting and Natural Order, http://www.mongodb.org/display/DOCS/Sorting+and+Natural+Order
as well as sort() under Cursor Methods
http://www.mongodb.org/display/DOCS/Advanced+Queries
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Why (0-6) is -6 = False? [duplicate]
...CPython, thus the is test passes.
This artifact is explained in detail in http://www.laurentluce.com/posts/python-integer-objects-implementation/, and we could check the current source code in http://hg.python.org/cpython/file/tip/Objects/longobject.c.
A specific structure is used to refer smal...
Dependency injection with Jersey 2.0
...viceFactory implements Factory<MyService> {
@Context
private HttpHeaders headers;
@Override
public MyService provide() {
return new MyService(headers.getHeaderString("X-Header"));
}
@Override
public void dispose(MyService service) { /* noop */ }
}
registe...
How do you print in a Go test using the “testing” package?
... similar to fmt.Print and fmt.Printf respectively.
See more details here: http://golang.org/pkg/testing/#pkg-index
fmt.X print statements do work inside tests, but you will find their output is probably not on screen where you expect to find it and, hence, why you should use the logging methods in...
Cross-referencing commits in github
...eUploader: {
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How can I write data in YAML format in a file?
...eUploader: {
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 46.2665 7.94324 4...
How does lock work exactly?
...pends on the way you lock. You can find a good list of optimizations here: http://www.thinkingparallel.com/2007/07/31/10-ways-to-reduce-lock-contention-in-threaded-programs/
Basically you should try to lock as little as possible, since it puts your waiting code to sleep. If you have some heavy calc...
SQL Server 2012 column identity increment jumping from 6 to 1000+ on 7th entry [duplicate]
...ng on this trace flag.
use a sequence generator with the NO CACHE setting (http://msdn.microsoft.com/en-us/library/ff878091.aspx)
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Prevent strace from abbreviating arguments?
...eUploader: {
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 46.2665 7.94324 4...
How to force Selenium WebDriver to click on element which is not currently visible?
...t library is loaded on that page).
The source for the visibility check -
https://github.com/SeleniumHQ/selenium/blob/master/javascript/atoms/dom.js#L577
The WebDriver spec that defines this -
https://dvcs.w3.org/hg/webdriver/raw-file/tip/webdriver-spec.html#widl-WebElement-isDisplayed-boolean
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