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Why is it said that “HTTP is a stateless protocol”?
...in the stack. You could serve HTTP over named pipes if you wanted, or even by sending files around, if you got enough masochists to agree to do it, and it would work precisely because HTTP is transport-protocol-agnostic. At that level, it's all just requests and responses. That makes HTTP itself sta...
PostgreSQL: Difference between text and varchar (character varying)
... that the rules (and attempted violations/retries) can be handled smoothly by the UI. If someone does still want to do this sort of thing in the database they could use constraints. See blog.jonanin.com/2013/11/20/postgresql-char-varchar which includes "an example of using TEXT and constraints to cr...
Using reflect, how do you set the value of a struct field?
...e marshals and unmarshals JSON from and to Go structures.
Here's a step-by-step example which sets the value of a struct field while carefully avoiding errors.
The Go reflect package has a CanAddr function.
func (v Value) CanAddr() bool
CanAddr returns true if the value's
address can be ...
Why does GitHub recommend HTTPS over SSH?
...s the easiest to set up on the widest range of networks and platforms, and by users who are new to all this.
There is no inherent flaw in SSH (if there was they would disable it) -- in the links below, you will see that they still provide details about SSH connections too:
HTTPS is less likely to...
What should I do if two libraries provide a function with the same name generating a conflict?
...ce qeek says he's talking about dynamic libraries, the solutions suggested by Ferruccio and mouviciel are probably best. (I seem to live in long ago days when static linkage was the default. It colors my thinking.)
Apropos the comments: By "export" I mean to make visible to modules linking to the ...
Explanation of [].slice.call in javascript?
...ion think that it's being called from the parameter (the NodeList returned by document.querySelectorAll('a')) rather than from an array.
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Changing .gitconfig location on Windows
By default on Windows Git places global .gitconfig in c:\documents and settings\user\
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What are the best practices for SQLite on Android?
...cking (Updated link 6/18/2012)
Android-Database-Locking-Collisions-Example by touchlab on GitHub
Gray and I are actually wrapping up an ORM tool, based off of his Ormlite, that works natively with Android database implementations, and follows the safe creation/calling structure I describe in the b...
When should an IllegalArgumentException be thrown?
... you should consider where the input is coming from.
Is the input entered by a user or another external system you don't control, you should expect the input to be invalid, and always validate it. It's perfectly ok to throw a checked exception in this case. Your application should 'recover' from th...
Grab a segment of an array in Java without creating a new array on heap
...ava that will return a segment of an array. An example would be to get the byte array containing the 4th and 5th bytes of a byte array. I don't want to have to create a new byte array in the heap memory just to do that. Right now I have the following code:
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