What is is.na() function in R?
Overview is.na() is used to deal with missing values in the dataset or data frame. We can use this method to check the NA field in a data frame and he...
How to extract the fractional part of a float number in Python
In this shot, we will learn how to extract a float number’s fractional part. 1. Using the modulo ( % ) operator The % operator is an arithmetic operat...
How to find the sum of values in an array in C++
In this Answer, we will go over how to sum up all the values in a one-dimensional array. There are two main ways to achieve this, as discussed below. ...
How to find sum of a list in Go
Go is an open-source programming language developed by Google. In Go, we can calculate the sum of a list or slice by using a loop and maintaining a va...
How to deep copy a struct in Go
Overview The Go language creates a deep copy of structs with primitive type fields by default. However, there is no built-in function to deep copy a s...
What is delete() in Go?
Overview delete() is an inbuilt function that deletes an element with a specified key from a map. Below is the prototype of delete() in Go, which show...
How to create a table in SQLAlchemy
SQLAlchemy allows us to define the database schema using Python classes, simplifying creating tables and specifying their structure. In this Answer, w...
How to create a Map in TypeScript
Overview We use the Map as a data structure to store key-value entries. It is also known as a dictionary. In TypeScript, we can easily create a Map us...
How to check if a character is a digit in C#
Overview A character can be an alphabet, symbol, etc. In other words, a character can be alphanumeric. In C#, we can use the IsDigit() method to check...
How to view unpushed Git commits
Overview Git is a free and open-source distributed version control system. In this shot, we'll learn how to view git commits that have not been pushed...
How to find element by ID using Beautiful Soup
Key takeaways: Beautiful Soup is a Python library that simplifies web scraping and HTML or XML parsing. The ID attribute in HTML is used to uniquely i...
beautifulsoup
id
find
web scraping
python
What is the Docker ADD command?
The ADD command is used to copy files/directories into a Docker image. It can copy data in three ways: Copy files from the local storage to a destinat...
docker
dockerfile
add
container
How to use the toString() in Java
“Providing a good toString() implementation makes your class much more pleasant to use and makes systems using the class easier to debug.”— Joshua Blo...
tostring
java
convert to string
string conversion
How to gzip a directory in Linux
Key takeaways gzip is a tool for compressing individual files using the DEFLATE algorithm. gzip alone cannot compress directories. Instead, use tar to...
What is the IQR() function in R?
Overview In R, the IQR() function is used to compute the interquartile range of a given object of numerical values. The interquartile range of these v...
How to represent null values in YAML
What are null values? Null values represent unknown or undefined values. Null values are sometimes called nil values. However, in YAML, the term nil i...
How to convert an integer to binary in Java
Introduction There are multiple techniques for converting an integer ( i ) to equivalent binary representation. This article discusses the most straig...
How to return the difference of two strings in Python
Strings in Python Strings are sequences of characters or collections of bytes that represent Unicode characters. We can put the characters inside sing...
Supervised vs. unsupervised vs. reinforcement learning
Key takeaways: Supervised, unsupervised, and reinforcement learning represent the three major categories of machine learning (ML) techniques. Supervis...
How to change the size of the header in CSS
The header of a webpage often referred to as the header section or header element , is typically located at the top of the page and contains important...