Programming Tutorials and Coding Guides
Explore programming tutorials with practical examples across multiple languages, scripting, and development concepts for beginners and advanced users.
Welcome to the Programming tutorials section, where you will learn coding concepts with real-world examples across multiple languages and platforms.
This category includes beginner to advanced guides covering scripting, automation, and application development. Whether you are learning programming for system administration or building applications, these tutorials will help you gain practical experience.
Programming plays a crucial role in modern infrastructure and DevOps workflows. You can also explore related topics such as DevOps and Linux to understand how programming integrates with system-level operations.
What you will learn
- Core programming concepts and logic building
- Writing scripts for automation and system tasks
- Debugging and optimizing code
- Practical use cases in real environments
Who should read this
- Beginners starting with coding
- System administrators learning scripting
- Developers looking for practical examples
957 articles
Featured guides in this category
Hand-picked, most-cited tutorials — start here if you're new.
![HackerRank Solution: Martix Script [Python Regex]](/matrix-script-hackerrank-solution/python_matrix_script_hu_128db40108208303.webp)
HackerRank Solution: Martix Script [Python Regex]
In this tutorial we will cover multiple methods to solve matrix script from hackerrank solutions.
HackerRank Solution: Python Company Logo
company logo hackerrank solution python, company logo hackerrank solution python3, hackerrank solution for …
Python subprocess
Learn how to use Python subprocess to run shell commands, capture output, handle errors, use timeouts, pass …
How to Remove or Uninstall a Go Package (go get, Go Modules, Tools)
Learn how to remove or uninstall a Go package added with go get or go install. This guide explains how to …
HackerRank Solution: Python Alphabet Rangoli
In this tutorial we cover 3 methods to solve alphabet rangloi hackerrank solution in python3. Solution-1: …
![HackerRank Solution: Python Nested Lists [4 Methods]](/python-nested-list-hackerrank-solution/python_nested_lists_hu_3ed8216f6e7dce26.webp)
HackerRank Solution: Python Nested Lists [4 Methods]
In this tutorial we will cover 4 different methods to solve python nested list hackerrank solution using …
JavaScript slice(): Array and String Examples
Learn JavaScript slice() for arrays and strings, including start/end indexes, negative indexes, shallow copy behavior, and slice vs splice.
Parse a string to a boolean in JavaScript
Coerce strings with Boolean() and !!, or parse canonical values like 'true'/'false'. Learn the difference and avoid common mistakes.
Calling vs invoking functions in JavaScript: what actually happens to this
Call vs invoke and invoke vs call in JavaScript: both usually mean run a function. Clarify this binding, method calls vs free calls, Function.prototype.call …
Detect ad blockers in JavaScript: bait DOM, heuristics, and what not to break
How to detect adblock in JavaScript: bait DOM patterns, getComputedStyle and offsetWidth checks, BlockAdBlock (blockadblock js) global guard, common API …
JavaScript Send Tab Key and Detect Tab Key Press
Learn how to detect the Tab key in JavaScript, understand keyCode 9, handle KeyboardEvent.key, and why browsers restrict simulated Tab navigation.
JavaScript Sort by Date: Ascending and Descending Examples
Learn how to sort dates in JavaScript using Array.sort(), Date objects, timestamps, ascending and descending order, and safe ISO date strings.
Math.ceil() in JavaScript with Examples
Learn how Math.ceil() works in JavaScript with rounding up examples, negative numbers, and practical integer conversion cases.
JavaScript Wait 5 Seconds with setTimeout
Learn how to wait 5 seconds in JavaScript with setTimeout(), plus a Promise-based delay example and real timer output.
Clear timeouts in JavaScript: clearTimeout and patterns that scale
Use clearTimeout (cleartimeout in search terms) to cancel one or many setTimeout timers. JavaScript has no built-in clear-all—track handles in a Set or array, …
Call a function every second in JavaScript (setInterval, cleanup)
JavaScript call function every second and every 5 seconds with setInterval and clearInterval, recursive setTimeout when work overlaps, setTimeout delays, async …
insertBefore in JavaScript (DOM, null, nextSibling)
insertBefore javascript and js insert before: parent.insertBefore(newNode, referenceNode), referenceNode null for end append, firstChild text nodes, insert …
Python Return Multiple Values
Learn how to return multiple values from a Python function using comma-separated return values, tuple unpacking, lists, dictionaries, NamedTuple, dataclass, and …
Add days to a date in JavaScript (UTC, local, DST caveats)
How to javascript add days to date and js date add days: getUTCDate/setUTCDate for UTC calendar days, getDate/setDate for local wall calendar, immutable copy …
Fix "Setting an Array Element with a Sequence" in Python (NumPy ValueError Explained + Examples)
Learn how to fix the "ValueError: setting an array element with a sequence" in Python and NumPy. Understand inhomogeneous shape errors, causes, real examples, …
Golang Command Line Arguments: os.Args, Flags, and Examples
Read command-line arguments in Go with os.Args, use the flag package for named options, validate positional args, parse numbers safely, and understand go run vs …