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How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
In a recent interview, I was asked a really strange question. The interviewer asked me how can I compute 1+2+3+...+1000 just using compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this su...
CSS3 background image transition
I'm trying to make a "fade-in fade-out" effect using the CSS transition. But I can't get this to work with the background image...
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Delete a key from a MongoDB document using Mongoose
I'm using the Mongoose Library for accessing MongoDB with node.js
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What is the difference between display: inline and display: inline-block?
What exactly is the difference between the inline and inline-block values of CSS display ?
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How can I check a C# variable is an empty string “” or null? [duplicate]
I am looking for the simplest way to do a check. I have a variable that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
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Android: Difference between Parcelable and Serializable?
Why does Android provide 2 interfaces for serializing objects? Do Serializable objects interopt with Android Binder and AIDL files?
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Overriding a Rails default_scope
If I have an ActiveRecord::Base model with a default-scope:
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Can I use a binary literal in C or C++?
I need to work with a binary number.
19 Answers
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How do you copy a record in a SQL table but swap out the unique id of the new row?
This question comes close to what I need, but my scenario is slightly different. The source table and destination table are the same and the primary key is a uniqueidentifier (guid). When I try this:
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Triggering HTML5 Form Validation
I have a form with several different fieldsets. I have some Javascript that displays the field sets to the users one at a time. For browsers that support HTML5 validation, I'd love to make use of it. However, I need to do it on my terms. I'm using JQuery.
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