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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t

...g contains the proper version for the assembly "System.Web.WebPages.Razor" and "System.Web.Mvc". Check for their actual existence as well as my "System.Web.WebPages.Razor" assembly tag was missing causing the error. I had my assembly versions set to 3.0 and 5.0 respectively in the time of this writ...
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Command-line Unix ASCII-based charting / plotting tool

Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph. ...
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Why does flowing off the end of a non-void function without returning a value not produce a compiler

... C99 and C++ standards don't require functions to return a value. The missing return statement in a value-returning function will be defined (to return 0) only in the main function. The rationale includes that checking if every c...
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Where can I get a list of Ansible pre-defined variables?

...at Ansible provide some pre-defined variables that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me? ...
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What is the difference between async.waterfall and async.series

...s://github.com/caolan/async provides 2 similar methods, async.waterfall and async.series . 4 Answers ...
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Using “Object.create” instead of “new”

...xist, if you call again this method on an existing object instance, the id and name properties will change. Object.create lets you initialize object properties using its second argument, e.g.: var userB = { sayHello: function() { console.log('Hello '+ this.name); } }; var bob = Object.cre...
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Why do we check up to the square root of a prime number to determine if it is prime?

... If a number n is not a prime, it can be factored into two factors a and b: n = a * b Now a and b can't be both greater than the square root of n, since then the product a * b would be greater than sqrt(n) * sqrt(n) = n. So in any factorization of n, at least one of the factors must be smal...
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JavaScript for…in vs for

Do you think there is a big difference in for...in and for loops? What kind of "for" do you prefer to use and why? 23 Answe...
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Getting Chrome to accept self-signed localhost certificate

...this certificate after initially complaining about it, as expected. Chrome and IE, however, refuse to accept it, even after adding the certificate to the system certificate store under Trusted Roots. Even though the certificate is listed as correctly installed when I click "View certificate informat...
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AddBusinessDays and GetBusinessDays

... For the second one, one solution is to take the difference between date and date+days. This is nice in that it guarantees that the two functions will sync properly, and it removes redundancy. – Brian Jun 25 '09 at 16:20 ...