The expiration values of a key can be managed by a user outside of the update commands. Redis allows a user to determine the current time to live (TTL) of a key using the TTL command:
TTL key
This command will return the TTL of a key in seconds or will return the special values -1 or -2. A -1 ...
The following example demonstrates using Lumen in WAMP / MAMP / LAMP environments.
To work with Lumen you need to setup couple of things first.
Composer
PHPUnit
git (not required but strongly recommended)
Assuming you have all these three components installed (at least you need composer), f...
Simple Hello World Application:
using System;
namespace HelloWorld
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Hello World");
}
}
}
Equivalent IL Code (which will be JIT compiled)
// Microsoft (R) ...
Retrolambda lets you run Java 8 code with lambda expressions, method references and try-with-resources statements on Java 7, 6 or 5. It does this by transforming your Java 8 compiled bytecode so that it can run on an older Java runtime.
Backported Language Features:
Lambda expressions are back...
It is possible to use integer variables with latex. To create a new variable we need the \newcounter{name} command, where name is the name of the new counter. The name must contain only letters. This command creates a new one with name \thename. With this command we can print name variable onto the ...
Completion can be used to match words used in a document. When typing a word, Ctrlp or Ctrln will match previous or next similar words in the document.
This can even be combined with Ctrl-X mode to complete entire lines. For instance type something like:
This is an example sentence.
then go to ...
C++17
The if constexpr statement can be used to conditionally compile code. The condition must be a constant expression. The branch not selected is discarded. A discarded statement inside a template is not instantiated. For example:
template<class T, class ... Rest>
void g(T &&p, Re...
One good reason to use Filters is for logging. Using this technique a REST call can be logged and timed easily.
public class RestLogger implements ClientRequestFilter, ClientResponseFilter {
private static final Logger log = LoggerFactory.getLogger(RestLogger.class);
// Used for timing...
This example shows how to use mathematical operations with counters. It may be useful for loops in latex.
Addition: \addtocounter{num}{n}
this command adds n to num, where num is a counter and n is a positive integer.
Subtraction: \addtocounter{num}{-n}
this command subtracts n from num, where n...
Nested for loops may be used to iterate over a number of unique iterables.
result = []
for a = iterable_a
for b = iterable_b
push!(result, expression)
end
end
Similarly, multiple iteration specifications may be supplied to an array comprehension.
[expression for a = iterabl...
Generator comprehensions follow a similar format to array comprehensions, but use parentheses () instead of square brackets [].
(expression for element = iterable)
Such an expression returns a Generator object.
julia> (x^2 for x = 1:5)
Base.Generator{UnitRange{Int64},##1#2}(#1,1:5)
Fun...
This Example using Standard EXE Project With addition of a Module File.
Create New "Standard EXE" Project. So here, a Form will get added to the Project by default.
Add a Module File to the Project
Place a Command Button on the Form
Create Command Button Click Event.
Module code...
Adding a video that will autoplay on a loop and has no controls or sound. Perfect for a video header or background.
<video width="1280" height="720" autoplay muted loop poster="video.jpg" id="videobg">
<source src="video.mp4" type="...
DIGEST() functions generate a binary hash of the given data. This can be used to create a random hash.
Usage: digest(data text, type text) returns bytea
Or: digest(data bytea, type text) returns bytea
Examples:
SELECT DIGEST('1', 'sha1')
SELECT DIGEST(CONCAT(CAST(current_timestamp AS...
It is known for a while that dealing with loops in Blade has been limited, as of 5.3 there is a variable called $loop available
@foreach($variables as $variable)
// Within here the `$loop` variable becomes available
// Current index, 0 based
$loop->index;
// Current ite...
There are many responsive scenarios where it's necessary to have column units exceeding 12 in a single .row element. This is known as column wrapping.
If more than 12 columns are placed within a single row, each group of
extra columns will, as one unit, wrap onto a new line.
For example, cons...
