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What is the difference between DSA and RSA?
It appears they are both encryption algorithms that require public and private keys. Why would I pick one versus the other to provide encryption in my client server application?
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How can I check if a value is a json object?
My server side code returns a value which is a json object on success and a string 'false' on failure. Now how can I check whether the returned value is a json object?
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How to commit a change with both “message” and “description” from the command line? [duplicate]
I'm new to both git and GitHub. I managed to set up everything locally on my Mac, so that now I can push commits to GitHub via git (on the command line, not the Mac app).
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Filtering collections in C#
I am looking for a very fast way to filter down a collection in C#. I am currently using generic List collections, but am open to using other structures if they perform better.
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Python: how to print range a-z?
1. Print a-n: a b c d e f g h i j k l m n
17 Answers
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Do the parentheses after the type name make a difference with new?
...cause there are differences that can actually affect your code's behavior. Much of the following is taken from comments made to an "Old New Thing" article.
Sometimes the memory returned by the new operator will be initialized, and sometimes it won't depending on whether the type you're newing up is...
Dealing with “java.lang.OutOfMemoryError: PermGen space” error
Recently I ran into this error in my web application:
32 Answers
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SQL Server 2008: How to query all databases sizes?
I have MS SQL 2008 R2, 500 databases.
What is the most efficient, easiest and 'modern' way to query all databases sizes.
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Inserting a Python datetime.datetime object into MySQL
I have a date column in a MySQL table. I want to insert a datetime.datetime() object into this column. What should I be using in the execute statement?
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Apply a function to every row of a matrix or a data frame
Suppose I have a n by 2 matrix and a function that takes a 2-vector as one of its arguments. I would like to apply the function to each row of the matrix and get a n-vector. How to do this in R?
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