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How to draw polygons on an HTML5 canvas?

... 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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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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Error: Could not find or load main class in intelliJ IDE

I'm a beginner in Java and am trying to run my code using IntelliJ that I just installed as my IDE with JDK 1.7. The following piece of code keeps does not even compile and keeps giving me the error: ...
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Failed loading english.pickle with nltk.data.load

... 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...
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Subversion stuck due to “previous operation has not finished”?

...orning from my home pc, but then I commit the same set of files from work, and now my home repo is bust). So, cleanup says: ...
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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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What are DDL and DML?

I have heard the terms DDL and DML in reference to databases, but I don't understand what they are. 12 Answers ...
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I need a Nodejs scheduler that allows for tasks at different intervals [closed]

...* * * * *' - runs every 5 seconds '10,20,30 * * * * *' - run at 10th, 20th and 30th second of every minute '0 * * * * *' - runs every minute '0 0 * * * *' - runs every hour (at 0 minutes and 0 seconds) But also more complex schedules e.g. '00 30 11 * * 1-5' - Runs every weekday (Monday through Fr...
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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:...
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How to make rounded percentages add up to 100%

... There is aproblem with this function when the last element is 0 and previous ones add to 100. E.g. [52.6813880126183, 5.941114616193481, 24.55310199789695, 8.780231335436383, 8.04416403785489, 0]. The last one logically returns -1. I thought of the following solution really quickly but th...