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How can bcrypt have built-in salts?
...tor has been pre-configured. Collect a password.
Derive an encryption key from the password using the salt and cost factor. Use it to encrypt a well-known string. Store the cost, salt, and cipher text. Because these three elements have a known length, it's easy to concatenate them and store them in...
Getting hold of the outer class object from the inner class object
...he JLS as Qualified this.
I don't think there's a way to get the instance from outside the code of the inner class though. Of course, you can always introduce your own property:
public OuterClass getOuter() {
return OuterClass.this;
}
EDIT: By experimentation, it looks like the field holding...
Find out time it took for a python script to complete execution
...
from datetime import datetime
startTime = datetime.now()
#do something
#Python 2:
print datetime.now() - startTime
#Python 3:
print(datetime.now() - startTime)
...
Is git-svn dcommit after merging in git dangerous?
...ollows:
I have a "master" branch that is the only branch that I dcommit from and that clone the SVN repository (-s assume you have a standard SVN layout in the repository trunk/, branches/, and tags/):
git svn clone [-s] <svn-url>
I work on a local branch "work" (-b creates the branch "wo...
Does assignment with a comma work?
...the comma operator.
The comma operator evaluates both of its operands (from left to right) and returns the value of the second operand.
This code:
aaa = 1,2,3
Is equivalent to:
aaa = 1;
2;
3;
So aaa is implicitly declared and assigned a value of 1. Notice that the output on the console...
Purging file from Git repo failed, unable to create new backup
I tried to remove a file from my remote repo by running:
4 Answers
4
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Node.js + Nginx - What now?
... res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello from app1!\n');
}).listen(3000, "127.0.0.1");
console.log('Server running at http://127.0.0.1:3000/');
node app2.js
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type'...
Why is std::map implemented as a red-black tree?
...Black trees are used in most collection libraries, including the offerings from Java and Microsoft .NET Framework.
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Convert a Git folder to a submodule retrospectively?
...ul as a standalone component (a library, perhaps). If you've had that idea from early on, then there's a fair chance that most of that code is in its own folder.
...
How to get last items of a list in Python?
...
a negative index will count from the end of the list, so:
num_list[-9:]
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