You may also extend nested selectors. The below Less
.otherChild{
color: blue;
}
.otherParent{
color: red;
.otherChild{
font-size: 12px;
color: green;
}
}
.parent{
.nestedParagraph{
&:extend(.otherParent .otherChild);
}
}
Will compile to
.otherChild...
You can establish a transaction by calling the pipeline method on the StrictRedis. Redis commands executed against the transaction are performed in a single block.
# defaults to transaction=True
tx = r.pipeline()
tx.hincrbyfloat(debit_account_key, 'balance', -amount)
tx.hincrbyfloat(credit_acc...
In this example the microcontroller echos back the received bytes to the sender using UART RX interrupt.
#include "stm32f4xx.h"
UART_HandleTypeDef huart2;
/* Single byte to store input */
uint8_t byte;
void SystemClock_Config(void);
/* UART2 Interrupt Service Routine */
void...
By default, NuGet restores packages into the packages folder in the solution root. This folder is shared between all solution projects. In some cases it is useful to change the location of the restored packages (for instance, to share them between several solutions).
Its can be achieved by creating...
Add gem 'figaro' to your Gemfile and run bundle install. Then run bundle exec figaro install; this will create config/application.yml and add it to your .gitignore file, preventing it from being added to version control.
You can store your keys in application.yml in this format:
SECRET_NAME: secre...
For all my projects, Django-Allauth remained one that is easy to setup, and comes out of the box with many features including but not limited to:
Some 50+ social networks authentications
Mix signup of both local and social accounts
Multiple social accounts
Optional instant-signup for social ac...
The Jedis library is generally added to Java project using a dependency management system built into the build environment of the project. Two popular Java build systems are Maven and Gradle.
Using Gradle
To add the Jedis library to a Gradle project, you will need configure a repository and add a...
Using a Pool
Most code will want to connect to Redis using a pool of shared connection objects. Connecting to Redis using a pool involves two different code block. At initialization time, your application needs to create the connection pool:
JedisPoolConfig poolCfg = new JedisPoolConfig();
...
Once you have established a connection to Redis you can get and set values using the Jedis connection object:
Get
String value = jedis.get(myKey);
Set
jedis.put(myKey, "some value");
CentOS versions 2 - 5
CentOS version 7
CentOS 7 is fully based on RedHat the detail documentation, examples and system administration guides are located here:CentOS 7 full documention
Local mode
In local mode, for example when running your application from an IDE, you can configure log4j as usual, i.e. by making a log4j.properties available in the classpath. An easy way in maven is to create log4j.properties in the src/main/resources folder. Here is an example:
log4j.rootLogger...
In case you need different settings for your various applications, there is (as of Flink 1.2) no easy way to do that.
If you use the one-yarn-cluster-per-job mode of flink (i.e. you launch your scripts with: flink run -m yarn-cluster ...), here is a workaround :
create a conf directory somewhe...
Yarn does not by default aggregate logs before an application finishes, which can be problematic with streaming jobs that don't even terminate.
A workaround is to use rsyslog, which is available on most linux machines.
First, allow incoming udp requests by uncommenting the following lines in /etc/...
Get-User()
Use Verb-Noun pattern while naming a function.
Verb implies an action e.g. Get, Set, New, Read, Write and many more. See approved verbs.
Noun should be singular even if it acts on multiple items. Get-User() may return one or multiple users.
Use Pascal case for both Verb and Noun. ...
There are a variety of ways to validate parameter entry, in PowerShell.
Instead of writing code within functions or scripts to validate parameter values, these ParameterAttributes will throw if invalid values are passed.
ValidateSet
Sometimes we need to restrict the possible values that a paramet...
