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Avoiding instanceof in Java
...class - i.e. Integer etc. in this case. Clearly this is not practical. Sometimes it isn't even logically the right place to put the code. He recommends the 'instanceof' approach as being the lesser of several evils.
As with all cases where you are forced to write smelly code, keep it buttoned up in...
Secure hash and salt for PHP passwords
... password hashing is to deter a hacker or cracker by costing them too much time or money to calculate the plain-text passwords. And time/cost are the best deterrents in your arsenal.
Another reason that you want a good, robust hash on a user accounts is to give you enough time to change all the pas...
Fastest way to count exact number of rows in a very large table?
...ou run on db having tables with ~billion entries like @gbn and noticed the time ?
– KNU
Nov 22 '14 at 17:41
which valu...
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...t;T>. And if it's a lazy collection, than it can iterate it a couple of times as other Enumerable<T> methods do. Imho, this method shouldn't be used for such cases, as it's not so logical for that case.
– Sergey Litvinov
Nov 20 '13 at 10:45
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Understanding the Event Loop
...we are talking about a single-threaded application, then what processes setTimeouts while JS engine accepts more requests and executes them? Isn't that single thread will continue working on other requests? Then who is going to keep working on setTimeout while other requests keep coming and get exec...
Assembly code vs Machine code vs Object code?
...e now much more complicated: evaluating whole sections of source code at a time, caching and optimizing where possible, and handling complex memory management tasks.
One final type of program involves the use of a runtime-environment or virtual machine. In this situation, a program is first pre-comp...
Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
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@Biscuits Either the extension methods changed over time or you forgot the builder _ .Entity<TEntity>() _ before HasOne() can be called...
– ViRuSTriNiTy
May 18 at 13:51
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How do you merge two Git repositories?
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This did the business for me. Worked like a charm first time with only one conflict in the .gitignore file! It perfectly preserved the commit history. The big plus over other approaches - in addition to simplicity - is that with this there need not be an ongoing reference to the m...
What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each
...able by server side then server side is have to provide client secret this time to token url to get token as json object from authorization server. It is used in case you have application server that can handle this and store user token with his/her profile on his own system, and mostly used for com...
Failed to import new Gradle project: failed to find Build Tools revision *.0.0
...fter spending a few hours: I restarted the Android SDK Manager and at this time I noticed that I got Android SDK Platform-tools (upgrade) and Android SDK Build-tools (new).
After installing those, I was finally able to fully compile my project.
Note: The latest ADT (Version 22) should be installed...