How to install wrk on Ubuntu
To install wrk
on Ubuntu, you need to run:
sudo apt-get update
sudo apt-get install wrk
What is the difference between let and var in Javascript?
The difference between let
and var
is the scope in which the variables are available.
let
declares a block-scoped variable. They are accessible only within the block (enclosed by curly braces) in which they are defined.var
declares function scoped or globally-scoped variable. This means they are accessible throughout the entire function in which they are defined or globally if defined outside of any function.
But what does that mean? Let's look at the examples below to understand the differences better.
How to get parameter in Symfony controller
To get parameters in Symfony controller, you can bind a parameter to a variable and inject it into a controller or service.
How to list directory files in Symfony
To list files in a directory with Symfony, you can use the Finder Component - $finder->files()->in(__DIR__);
Let's look at the example below to understand better how the Finder component works.
How to fix Only attribute mapping is supported by make:entity error in Symfony
To fix the Only attribute mapping is supported by make:entity error
error in Symfony, you need to change your Doctrine Entity type in your config/packages/doctrine.yaml
from annotation
to attribute
.
How to use Symfony Query Builder where
In Symfony, the Doctrine Query Builder provides a convenient and object-oriented way to construct complex SQL queries. The where()
method is used within the Query Builder to add conditions to your queries. Here's how you can use it:
How to use Symfony Query Builder delete
The Doctrine Query Builder in Symfony can be used not only to select entities but also to delete them by using ->delete()
.
How to use Symfony Query Builder count
The Doctrine Query Builder in Symfony can be used to count rows by using ->select('count(e.id) as c')
How to use Symfony Query Builder update
The Doctrine Query Builder in Symfony can be used not only for fetching entities but also to update them by using ->update()
.
Rclone sync vs copy - What are the differences?
Both sync
and copy
commands copy files from source to destination, but with one significant difference - sync
will delete files from the destination that are not existent on the source.
Let's look at some examples to understand the differences better.