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How to implement the factory method pattern in C++ correctly
... it should be a helper class that is used from the constructor anyway.
Vec2(float x, float y);
Vec2(float angle, float magnitude); // not a valid overload!
There is an easy workaround for this:
struct Cartesian {
inline Cartesian(float x, float y): x(x), y(y) {}
float x, y;
};
struct Polar {...
Change color of PNG image via CSS?
...03030a;
min-width: 800px;
min-height: 400px
}
img {
width:20%;
float:left;
margin:0;
}
/*Filter styles*/
.saturate { filter: saturate(3); }
.grayscale { filter: grayscale(100%); }
.contrast { filter: contrast(160%); }
.brightness { filter: brightness(0.25); }
.blu...
Increasing nesting function calls limit
...e is one very bad limit in PHP: if you call some function a1() that calls a2(), that calls a3... so when a99() will call a100() you will see
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What is the difference between statically typed and dynamically typed languages?
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edited Jan 7 '19 at 23:04
GG.
16.5k99 gold badges6666 silver badges113113 bronze badges
answered O...
How can I find the current OS in Python? [duplicate]
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272
I usually use sys.platform (docs) to get the platform. sys.platform will distinguish between l...
clear javascript console in Google Chrome
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Update: As of November 6, 2012, console.clear() is now available in Chrome Canary.
If you type clear() into the console it clears it.
I don't think there is a way to programmatically do it, as it could be misused. (console is cleared by some web ...
Get the current script file name
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answered Nov 19 '10 at 1:25
alexalex
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How to flip UIImage horizontally?
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239
Objective-C
UIImage* sourceImage = [UIImage imageNamed:@"whatever.png"];
UIImage* flippedIma...
Notification when a file changes?
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206
You can use the FileSystemWatcher class.
public void CreateFileWatcher(string path)
{
// ...
Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
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132
The regular expression you are after will most likely be huge and a nightmare to maintain especi...