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What data type to use for hashed password field and what length?
...a key-strengthening hash algorithm like Bcrypt or Argon2i. For example, in PHP, use the password_hash() function, which uses Bcrypt by default.
$hash = password_hash("rasmuslerdorf", PASSWORD_DEFAULT);
The result is a 60-character string similar to the following (but the digits will vary, because...
How does HTTP file upload work?
... 80 immediately hands off the task of serving to another thread/process in order that it can return to listening for another connection; even if two incoming connections arrive at exactly the same moment, they'll just sit in the network buffer until the daemon is ready to read them.
...
Factors in R: more than an annoyance?
...y they are useful because model fitting packages like lme4 use factors and ordered factors to differentially fit models and determine the type of contrasts to use. And graphing packages also use them to group by. ggplot and most model fitting functions coerce character vectors to factors, so the res...
How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version
...er to create code compatible with earlier Java versions.
For example, in order to generate class files compatible with Java 1.4, use the following command line:
javac -target 1.4 HelloWorld.java
With newer versions of the Java compiler you are likely to get a warning about the bootstrap class p...
Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
...ffer as part of v8, but the Buffer class provides a more flexible API. In order to read or write to an ArrayBuffer, you only need to create a view and copy across.
From Buffer to ArrayBuffer:
function toArrayBuffer(buf) {
var ab = new ArrayBuffer(buf.length);
var view = new Uint8Array(ab)...
Are there any Java method ordering conventions? [closed]
...re pretty jumbled up in terms of utility public/private etc. and I want to order them in a sensible way. Is there a standard way of doing this? E.g. normally fields are listed before methods, the constructor(s) are listed before other methods, and getters/setters last; what about the remaining metho...
Does List guarantee insertion order?
...
The List<> class does guarantee ordering - things will be retained in the list in the order you add them, including duplicates, unless you explicitly sort the list.
According to MSDN:
...List "Represents a strongly typed list of objects that can be
a...
Perl build, unit testing, code coverage: A complete working example
...age analysis, try this:
Build testcover
And you'll see something on the order of this:
t\HelloPerlBuildWorld....ok
All tests successful.
Files=1, Tests=18, 12 wallclock secs ( 0.00 cusr + 0.00 csys = 0.00 CPU)
cover
Reading database from D:/Documents and Settings/LeuchKW/workspace/HelloPerlBui...
Determine a string's encoding in C#
... UTF7, UTF8, UTF32 and more.
Most of these encodings contain certain byte-order marks that can be used to distinguish which encoding type was used.
The .NET class System.IO.StreamReader is able to determine the encoding used within a stream, by reading those byte-order marks;
Here is an example:
...
Sorting arraylist in alphabetical order (case insensitive)
...ich contains names of people. I want to sort the arraylist in alphabetical order.
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