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R
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How to return response from an asynchronous call in JavaScript?
Asynchronous programming is frequently used in javascript network programming. This technique allows one to start potentially long time-dependent task...
javascript
asynchronous
callbacks
await
How to use the Tkinter button widget
Tkinter is a Python in-built GUI module. It is used to develop cross-platform desktop applications. It is lightweight and easy to use compared to othe...
tkinter
python3
What is queue.deq() in Ruby?
The queue.deq() function in Ruby returns the element that is available in the front of the queue, and then removes it from the queue. Figure 1 shows t...
ruby
queue
Microsoft Certified: Azure Data Scientist Associate
The Azure Data Scientist Associate is one of many Microsoft Certifications that give a professional advantage by providing globally recognized and ind...
microsoft
What is EnableReflectionKey(key) in the winreg Python module?
winreg - Windows registry access provides functions that expose the Windows registry API to Python. Windows registry is a collection of databases that...
python
What is the list reverse() method in Python?
Overview The list.reverse() method is simply used to reverse the order of the items in a list in Python. Syntax list.reverse() Parmeter value There ar...
python
What is wcspbrk() in C?
The wcspbrk() function searches for the first occurrence of the common wide-character in the two wide-character strings that are passed to it as param...
c
What is float.eql?() method in Ruby?
Overview The eql?() method can be used to know if two float values are equal. It returns a Boolean value — i.e., either true or false . Syntax Paramet...
ruby
What is the selector method in Mojo::DOM?
Overview The selector method provides the CSS selector for the given HTML element. This method is provided by the Mojo::DOM module, which is an HTML/X...
mojo
selector
dom
css
What is vsscanf_s() in C?
vsscanf_s() reads a character string and writes the content of the string into a list of pointed addresses in the specified format. This method valida...
c
string
What is the SortedSet.tailSet() function in Java?
The SortedSet.tailSet() method is present in the SortedSet interface inside the java.util package. SortedSet.tailSet() is used to return the elements ...
java
How to generate a right arrow pattern using alphabets in Python
In this shot, we will discuss how to generate a right arrow pattern using alphabets in Python. Different patterns can be generated with Python, once y...
python
What is De Morgan's law?
De Morgan's law states that: The negation ( N O T NOT NOT ) of conjunction ( A N D AND A N D ) is equivalent to the disjunction ( O R OR OR ) of the n...
demorgan
boolean algebra
set theory
truth tables
logic gates
How to get a list of prime numbers in Euphoria
Overview Prime numbers are numbers that are only divisible by one and themselves. We use the prime_list() function to get a list of prime numbers in ...
euphoria
maths
What are dimension reduction methods?
In machine learning, it is important to have enough data to train our models with high generality. At the same time, this large amount of data may hav...
datascience
dimensionreduction
machinelearning
What is wcscspn in C?
The wcscspn function in C searches for the first occurrence of any character of a given wide string in another wide string. The process is illustrated...
c
Project Euler: What are repunit nonfactors?
Repunits Repunits are defined as numbers that consist of all ones. For example: 1111111,1111, … Repunit is denoted by R(k) , where k is the number’s l...
python
project euler
How to create a file in Java
The createNewFile() method of the File class is used to create a new file in Java. The method creates an empty file at the location specified in the F...
create
file
java
What is DateUtils.setHours() in Java?
Overview setHours() is a static the methods in Java that can be called without creating an object of the class. method of the DateUtils used to set th...
java
sethours
dateutils
How to prefix the labels of a series object in pandas
Overview The add_prefix() function in pandas is used to prefix the rows of a Series object. A Series object is a one-dimensional data structure used t...
pandas
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