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What does the construct x = x || m>y m> mean?
I am debugging some JavaScript, m>and m> can't explain what this || does?
12 Answers
12
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Is there a stm>and m>ardized method to swap two variables in Pm>y m>thon?
...om left to right. Notice that while
evaluating an assignment, the right-hm>and m> side is evaluated before the
left-hm>and m> side.
http://docs.pm>y m>thon.org/3/reference/expressions.html#evaluation-order
That means the following for the expression a,b = b,a :
the right-hm>and m> side b,a is evaluated,...
m>And m>roid Get Current timestamp?
...
From developers blog:
Sm>y m>stem.currentTimeMillis() is the stm>and m>ard "wall" clock (time m>and m> date) expressing milliseconds since the epoch. The wall clock can be set bm>y m> the user or the phone network (see setCurrentTimeMillis(long)), so the time mam>y m> jump backwards or forwards unpredictabl...
Calculating Pearson correlation m>and m> significance in Pm>y m>thon
I am looking for a function that takes as input two lists, m>and m> returns the Pearson correlation , m>and m> the significance of the correlation.
...
Emulate ggplot2 default color palette
...+1 I like m>y m>our nice, simple solution, although I am still trm>y m>ing to understm>and m> whm>y m> m>y m>ou have length=n+1 in the seq, whereas I have length=n
– m>And m>rie
Nov 19 '11 at 22:18
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绘画动画组件 · App Inventor 2 中文网
...0，则球形精灵将每50毫秒移动10个像素。
中心坐标
(X, m>Y m>) 坐标是否是球形精灵的中心，真 表示 (X, m>Y m>) 是其中心坐标，假 则表示 (X, m>Y m>) 是其左上角坐标。
填充色
球形精灵的颜色。
半径
从球形精灵中心到其边缘的距离。
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What exactlm>y m> does += do in pm>y m>thon?
... that simple. I also would appreciate links to definitions of other short hm>and m> tools in pm>y m>thon.
14 Answers
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How to create “No Activate” form in Firemonkem>y m>
...ild of NSPanel. I have written a helper class which works for both Windows m>and m> Mac platforms (Works on XE4):
unit NoActivateForm;
interface
uses Fmx.Forms, Fmx.Tm>y m>pes
{$IFDEF POSIX}
, Macapi.AppKit
{$ENDIF}
;
tm>y m>pe TNoActivateForm = class
private
form: TForm;
{$IFDEF POSIX}
panel: ...
iOS 7 TableView like in Settings App on iPad
...
I've gone ahead m>and m> further customized the willDisplam>y m>Cell to get a better simulation of the cell stm>y m>les in the settings app.
Objective-C
- (void)tableView:(UITableView *)tableView willDisplam>y m>Cell:(UITableViewCell *)cell forRowAtIndexPath:...
AngularJS - $anchorScroll smooth/duration
...ng $anchorScroll. As m>y m>ou discovered $anchorScroll doesn't have anm>y m> options m>and m> doesn't work with $ngAnimate. In order to animate the scroll m>y m>ou would need to use m>y m>our own service/factorm>y m> or just straight javascript.
For the sake of self-learning I put together an example with a smooth scrolling se...