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What is Inversion of Control?
...encies from your code.
For example, say your application has a text editor component and you want to provide spell checking. Your standard code would look something like this:
public class TextEditor {
private SpellChecker checker;
public TextEditor() {
this.checker = new SpellChec...
How to overwrite the previous print to stdout in python?
...the next line:
for x in range(10):
print '{0}\r'.format(x),
print
The comma at the end of the print statement tells it not to go to the next line. The last print statement advances to the next line so your prompt won't overwrite your final output.
Update
Now that Python 2 is EOL, a Python 3 ans...
What's the point of 'meta viewport user-scalable=no' in the Google Maps API
...lowing for a better user experience.
From Google IO 2013 session
https://www.youtube.com/watch?feature=player_embedded&v=DujfpXOKUp8#t=1435s
Update: its not true anymore, <meta name="viewport" content="width=device-width"> is enough to remove 300ms delay
...
Better way to check variable for null or empty string?
....
– Mattias Åslund
Jul 5 '13 at 13:01
11
Will not help for string with spaces only, if someone c...
Measuring the distance between two coordinates in PHP
...ized function from codexworld.com:
/**
* Optimized algorithm from http://www.codexworld.com
*
* @param float $latitudeFrom
* @param float $longitudeFrom
* @param float $latitudeTo
* @param float $longitudeTo
*
* @return float [km]
*/
function codexworldGetDistanceOpt($latitudeFrom, $longit...
JavaScript for detecting browser language preference [duplicate]
...ve knocked up a google app engine script at http://ajaxhttpheaders.appspot.com that will return you the HTTP request headers via JSONP.
(Note: this is a hack only to be used if you do not have a back end available that can do this for you. In general you should not be making calls to third party h...
IE8 support for CSS Media Query
...a way of degrading the design for IE8 users, you may find IE's conditional commenting helpful. Using this, you can specify an IE 8/7/6 specific style sheet which over writes the previous rules.
For example:
<link rel="stylesheet" type="text/css" media="all" href="style.css"/>
<!--[if lt I...
Why should I use Deque over Stack?
...tack has no interface, so if you know you need Stack operations you end up committing to a specific concrete class, which isn't usually a good idea.
Also as pointed out in the comments, Stack and Deque have reverse iteration orders:
Stack<Integer> stack = new Stack<>();
stack.push(1);
...
What does Class mean in Java?
...flection (the feature of Java language used to introspect itself): https://www.oracle.com/technetwork/articles/java/javareflection-1536171.html
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Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
...，看看有没有在构造析构函数中调用。以下来自：http: www.kuqin.c...结论：一般在构造、析构函数中调用虚函数就可能出这个错误，检查纯虚函数，看看有没有在构造析构函数中调用。
以下来自：http://www.kuqin.com/language/2010030...