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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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The type or namespace name does not exist in the namespace 'System.Web.Mvc'

... Clean your solution and then set the property of those files to Copy Local = True. To set the Copy Local property to True or False In Solution Explorer, click the Show All Files button to display the References node. Open the References node...
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vertical & horizontal lines in matplotlib

I do not quite understand why I am unable to create horizontal and vertical lines at specified limits. I would like to bound the data by this box. However, the sides do not seem to comply with my instructions. Why is this? ...
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In where shall I use isset() and !empty()

...TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form. 17 Answers ...
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How do you access a website running on localhost from iPhone browser

I am working on a mobile website and would like to test it using my iPhone browser. My Windows 7 machine and iPhone are on the same wireless network. How do I access localhost from the iPhone? Right now I get a 404 error. ...
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List all indexes on ElasticSearch server?

...curl http://localhost:9200/_aliases this will give you a list of indices and their aliases. If you want it pretty-printed, add pretty=true: curl http://localhost:9200/_aliases?pretty=true The result will look something like this, if your indices are called old_deuteronomy and mungojerrie: { ...
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Should one use < or

...!= instead? I'd say that that most clearly establishes i as a loop counter and nothing else. – yungchin Feb 12 '09 at 2:59 21 ...
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how do I make a single legend for many subplots with matplotlib?

... There is also a nice function get_legend_handles_labels() you can call on the last axis (if you iterate over them) that would collect everything you need from label= arguments: handles, labels = ax.get_legend_handles_labels() fig.legend(handles, labels, loc='upper c...
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Change Active Menu Item on Page Scroll?

... If your menu has a mix of on-page IDs and regular pages, place the on-page ID links first, then change menuItems = topMenu.find("a"), to menuItems = topMenu.find("a").slice(0,4),, replacing 4 with [your on-page links - 1]. – Stephen Saucier ...
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How do I truncate a .NET string?

...length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype. ...