大约有 44,000 项符合查询结果（耗时：0.0511秒） [XML]
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
...mizations - all the below is still valid.
Let's first discuss what it does and why that's faster and then why it works.
What it does
The V8 engine uses two object representations:
Dictionary mode - in which object are stored as key - value maps as a hash map.
Fast mode - in which objects are stored...
How to check if two arrays are equal with JavaScript? [duplicate]
...
@VarunMadiath the last loop goes through every element and compares them. If the arrays are not sorted then it will fail if the order of the items is not exactly the same.
– enyo
Sep 23 '13 at 15:17
...
How can I access and process nested objects, arrays or JSON?
I have a nested data structure containing objects and arrays. How can I extract the information, i.e. access a specific or multiple values (or keys)?
...
How should I validate an e-mail address?
...chnique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp?
...
How to set Python's default version to 3.x on OS X?
I'm running Mountain Lion and the basic default Python version is 2.7. I downloaded Python 3.3 and want to set it as default.
...
iPhone - Get Position of UIView within entire UIWindow
...he coordinate system ist defined by the bounds of the window. The screen's and device coordinate systems are different and should not be mixed up with window coordinates.
share
|
improve this answe...
How to get the width and height of an android.widget.ImageView?
I have an image view with some default height and width, images are stored in db and I want to scale Image according to Imageview height width. As I don't want it give default values because when ever I change it's height and width I also have to change it in code.
...
Zooming MKMapView to fit annotation pins?
I am using MKMapView and have added a number of annotation pins to the map about a 5-10 kilometre area. When I run the application my map starts zoomed out to show the whole world, what is the best way to zoom the map so the pins fit the view?
...
What is a regular expression which will match a valid domain name without a subdomain?
...ote, to use this regex, you will need to convert the domain to lower case, and also use an IDN library to ensure you encode domain names to ACE (also known as "ASCII Compatible Encoding"). One good library is GNU-Libidn.
idn(1) is the command line interface to the internationalized domain name libr...
Iterate keys in a C++ map
...ator returns (for example because you want to use your key-iterator with standard algorithms, so that they operate on the keys instead of the pairs), then take a look at Boost's transform_iterator.
[Tip: when looking at Boost documentation for a new class, read the "examples" at the end first. You ...