大约有 40,000 项符合查询结果（耗时：0.0626秒） [XML]
Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
I need some code samples (and I also really curious about them) of Scala and Java code which show that Scala code is more simple and concise then code written in Java (of course both samples should solve the same problem).
...
How to do a scatter plot with empty circles in Python?
... my case I have used it with errorbars but it works for markers in general
http://matplotlib.org/api/_as_gen/matplotlib.axes.Axes.errorbar.html
fillstyle accepts the following values: [‘full’ | ‘left’ | ‘right’ | ‘bottom’ | ‘top’ | ‘none’]
There are two important things to ...
Use of alloc init instead of new
...
There are a bunch of reasons here: http://macresearch.org/difference-between-alloc-init-and-new
Some selected ones are:
new doesn't support custom initializers (like initWithString)
alloc-init is more explicit than new
General opinion seems to be that you...
What are the benefits of functional programming? [closed]
...
Why Functional Programming Matters
http://www.cs.kent.ac.uk/people/staff/dat/miranda/whyfp90.pdf
Abstract
As software becomes more and more complex, it is more and
more important to structure it well. Well-structured software is easy
to write and to debug, an...
How to get the current date/time in Java [duplicate]
...dar.getInstance();
System.out.println(dateFormat.format(cal.getTime()));
http://www.mkyong.com/java/java-how-to-get-current-date-time-date-and-calender/
share
|
improve this answer
|
...
Calling a function within a Class method?
...c function newTest(){
$this->bigTest();
$this->smallTest();
}
private function bigTest(){
//Big Test Here
}
private function smallTest(){
//Small Test Here
}
public function scoreTest(){
//Scoring code here;
...
Breakpoint on property change
...al object
var obj = {
someProp: 10
};
// save in another property
obj._someProp = obj.someProp;
// overwrite with accessor
Object.defineProperty(obj, 'someProp', {
get: function () {
return obj._someProp;
},
set: function (value) {
debugger; // sets breakpoint
...
Error 1022 - Can't write; duplicate key in table
...ou can not have the same foreign key names in the database tables.
Check all your tables and all your foreign keys and avoid having two foreign keys with the same exact name.
share
|
improve this ...
What are some methods to debug Javascript inside of a UIWebView?
...tring in the iPhone simulator's console window:
document.location.href = "http://debugger/" +
encodeURIComponent(outputString);
and on the objective C side:
//--------------------------------------------------------------------
- (BOOL)webView:(UIWebView*)webView
shouldStartLoadWi...
Sort a list by multiple attributes?
... how, you can wrap your criteria (functions) in parenthesis:
s = sorted(my_list, key=lambda i: ( criteria_1(i), criteria_2(i) ), reverse=True)
share
|
improve this answer
|
...