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How to draw polygons on an HTML5 canvas?
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Create a path with moveTo and lineTo (live demo):
var ctx = canvas.getContext('2d');
ctx.fillStyle = '#f00';
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(100,50);
ctx.lineTo(50, 100);
ctx.lineTo(0, 90);
ctx.closePath();
ctx.fill();
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How to check command line parameter in “.bat” file?
... I need to have a ".bat" file where I need to check if user enters any command-line parameter or not. If does then if the parameter equals to -b then I will do something otherwise I will flag "Invalid input". If user does not enter any command-line parameter then I will do something. I have crea...
Any way to modify Jasmine spies based on arguments?
...ent parameters. I'd like to mock this external API out with a Jasmine spy, and return different things based on the parameters. Is there any way to do this in Jasmine? The best I can come up with is a hack using andCallFake:
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Android static object lifecycle
...ulate in another screen then user can edit search criteria from 3rd screen and goes to 4th screen.
4 Answers
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Metadata file '.dll' could not be found
I am working on a WPF, C# 3.0 project, and I get this error:
91 Answers
91
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Hidden Features of C++? [closed]
... that it can be used as an lvalue:
(a == 0 ? a : b) = 1;
which is shorthand for
if (a == 0)
a = 1;
else
b = 1;
Use with caution :-)
share
edited Jan 7 '09 at 21:...
Failed loading english.pickle with nltk.data.load
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I had this same problem. Go into a python shell and type:
>>> import nltk
>>> nltk.download()
Then an installation window appears. Go to the 'Models' tab and select 'punkt' from under the 'Identifier' column. Then click Download and it will install the...
Convert list of dictionaries to a pandas DataFrame
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As of Pandas 0.19.2, there's no mention of this in the documentation, at least not in the docs for pandas.DataFrame
– Leo Alekseyev
Apr 13 '17 at 22:56
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Missing styles. Is the correct theme chosen for this layout?
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For Android Studio (or IntelliJ IDEA),
If everything looks OK in your project and you're still receiving the error in your layouts, try to 'Invalidate caches & restart'.
Enjoy a coffee while Android Studio is recreating ca...
Is JSON Hijacking still an issue in modern browsers?
I am using Backbone.js and the Tornado web server. The standard behavior for receiving collection data in Backbone is to send as a JSON Array.
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