How to convert negative numbers to positive numbers in JavaScript
In this shot, we’ll learn how to convert a negative number to a positive number in JavaScript. We’ll start with the problem statement and then look at...
How to resize an array in Java
Overview The size of an array is the number of elements it can hold. In Java, the array size is fixed when it is created. The easiest way to resize an...
How to get the length of a vector in R
Key takeaways: Knowing the length of a vector is necessary to manage data size, control iterations, and ensure proper handling of operations in data a...
How to delete a file using the terminal
In this shot, you will learn how to remove a file (or files) from your system using Shell (bash, zsh, etc.) In case you’ve forgotten, Shell (or termi...
What is cd in Linux?
The cd command in Linux stands for change directory. It is used to change the current directory of the terminal. The terminal, by default, opens the h...
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...
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 print all elements of a list in C#
“Above all else, show the data.”— Edward R. Tufte Key takeaways: C# offers various ways to print list elements: for loop, foreach loop, ForEach method...
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
What is Integer.MAX_VALUE?
What are Integers? Integers are numbers that can be written without a fractional component. For example 1,2,3,4,5 are all integers; whereas. 1.2,3.4,4...
How to create a simple thread in C
In programming, concurrency through threads can greatly improve application efficiency. Threads enable tasks to execute simultaneously, whether it’s d...
c language
concurrency
threading
multitasking
What is the execl() function in C.?
The execl() is a function that belongs to the exec family of functions and is provided by the unistd.h library. This function can only be used in the ...
execl
e
c
programming
operating systems
How to use the SPLIT_PART() function in SQL
Key takeaways: SPLIT_PART() is a powerful function for string manipulation in SQL. It splits a string based on a delimiter and returns a specific part...
How to resolve "normal site-packages is not writable" in Python
In Python, the error message “Defaulting to user installation because normal site-packages is not writeable” usually appears when we try to install pa...
How to generate a square pattern in Python
Several patterns can be printed using Python, once we have a strong grip over the concepts involving loops. Here, we will be using simple for loops to...
What is go clean -modcache?
Overview The go clean -modcache is a command that is run on the terminal on computers where go is installed. This command deletes the cache download...
Printing patterns with numbers using nested for-loops
Key takeaways: Nested loops, combining an outer loop with an inner loop, are essential for solving pattern printing problems by controlling both rows ...
What is SequenceMatcher() in Python?
SequenceMatcher is a class that is available in the difflib Python package. The difflib module provides classes and functions for comparing sequences....
How to convert a string to int in Golang
A string can be converted into an int data type using the Atoi function provided by the package strconv . The package strconv supports conversions to ...
Read data from a file using read() in C
C is a high-level general-use programming language for making software and system programming. The read() function The read() function is a low-level ...