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How do I know if a generator is empty from the start?

... @S.Lott you don't need to generate the entire sequence to know if the sequence is empty or not. One element's worth of storage is sufficient - see my answer. – Mark Ransom Jun 13 '14 at 6:34 ...
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Mythical man month 10 lines per developer day - how close on large projects? [closed]

...reter in that language and did not touch the language since few years, and now I keep hearing of F# (so I am geniuinely curious about this) – mm24 May 5 '12 at 23:15 7 ...
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Ajax, back button and DOM updates

... as of today it diesn't do so can tell me what facebook does now – Ravinder Payal Oct 13 '15 at 5:25 add a comment  |  ...
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Populating a razor dropdownlist from a List in MVC

...s: SelectListItem SelectList Constructor (IEnumerable, String, String) Now that the viewmodel is created the presentation logic is simplified View: @model UserRoleViewModel @Html.LabelFor(m => m.SelectedUserRoleId) @Html.DropDownListFor(m => m.SelectedUserRoleId, Model.UserRoles) Refe...
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How to remove a key from a Python dictionary?

... help() and dir() can be your friends when you need to know what something does. – David Mulder Aug 6 '13 at 18:08 3 ...
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What is managed or unmanaged code in programming?

...ets the common language runtime, the foundation of the .NET Framework, is known as managed code. Managed code supplies the metadata necessary for the CLR to provide services such as memory management, cross-language integration, code access security, and automatic lifetime control of objects. All co...
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How to avoid annoying error “declared and not used”

... golint etc, and removes and adds import entries. So at least that part is now automatic. I will admit its not 100% of the solution to the question, but however useful enough. share | improve this ...
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Javascript regex returning true.. then false.. then true.. etc [duplicate]

... end. [a-z0-9_-] Whether that would cause this problem or not, I don't know. Additional notes: The first and last characters are allowed to be any character that isn't - or _ rather than being restricted to a-z0-9 a-z0-9 doesn't include uppercase characters. You need a-zA-Z0-9 for that. a-zA-...
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CSS3 background image transition

...k; background:url(images/social) no-repeat 0px -30px; opacity:0; } Now all you need is "opacity" under "a:hover" and set this to 1. #facebook a:hover { opacity:1; } Add the opacity transition attributes for each browser to "a" and "a:hover" so the the final css will look something like...
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How do I plot in real-time in a while loop using matplotlib?

... This answer requires a-priori knowledge of the x/y data... which is not needed: I prefer 1. don't call plt.axis() but instead create two lists x and y and call plt.plot(x,y) 2. in your loop, append new data values to the two lists 3. call plt.gca().lines[0...