PHP: Cast to Float
Let’s see how we can cast/convert one data type to another data type in PHP. We can as one data type to another using one of the following- Casting operator and Functions.
PHP: Cast to Integer
Let’s see how we can cast/convert one data type to another data type in PHP. We can as one data type to another using one of the following- Casting operator and Functions.
Elasticsearch: Installation
Run on Docker Use the following command to run Elasticsearch in a docker container- Here is the meaning of all the params and flags passed to the command- Run the following command to set(reset) the password- You will get some output like below- You can see the password. Check Elasticsearch Installation Check using Postman In … Read more
Elasticsearch
Elastic search is a distributed search and analytics engine, written in Java, and built on top of Apache Lucene.
Python class: enumerate [add counter to an iterable]
enumerate() adds a counter to an iterable. The iterable can be a string, list, tuple, or dictionary. enumerate() returns an “enumerate” object, that produces an index/serial and value pair while iterating over it. This way we can track the position of the item and value at the same time.
Python: Lambda Function
Start with the keyword “lambda”. Then put the list of parameters, which are separated by commas. Put colon(:) after that. Finally, write the return value or expression. Only one expression can be here, which is returned.
Python function: id() [get object identity]
id() function returns an integer, that is an unique identifier for the object. The id will be unique, and stays the same for the object lifetime.
Python: Boolean [Data Type]
Boolean represents a value that can be either true or false. Everything that is evaluated to a boolean can be one of 2 values- True, False
Python: String Padding
There are 2 main ways we can add padding to a string in Python- Using string formatting functions, Using f-strings.
Laravel: Save created_by, and updated_by User Information
To save created_by and updated_by user information in a laravel model- first create migrations for the the new fields, and then register events on model boot.