Quick Coding Facts

Joanna

Got 30 seconds? Great — that’s all you need to learn something new!

Find Files by Name in Seconds

You can quickly search for files by name anywhere in the system using the find command.

find / -name "config.php"

It scans directories recursively and locates files even if you don’t know where they’re stored.

Did you know?

Linux

#Tip 025

How to Exit Vim

You can exit Vim editor with a single command, no matter how “stuck” you feel.

# Save and quit
:wq

# Quit without saving
:q!

# Save only
:w

Just press Esc first to ensure you’re in normal mode, then type the command.

Did you know?

Linux

#Tip 024

Make your font sizes responsive with clamp()

You can make font sizes or spacing fully responsive without media queries using the clamp() function.

font-size: clamp(1rem, 2vw, 2rem);

clamp() smoothly scales values between a minimum and maximum, making layouts more flexible and predictable.

Did you know?

CSS

#Tip 023

Style Parents with :has()

You can target a parent element based on what’s happening inside it using the CSS :has() selector

.card:has(.button:hover) {
    background: #f0f0f0;
}

:has() works like a parent selector, letting you style an element based on the children it contains.

Did you know?

JavaScript

#Tip 022

What Is the .gitkeep File Used For?

The .gitkeep file isn’t a real Git feature – it’s just an empty placeholder developers use to make Git track otherwise empty folders, since Git ignores empty directories by default.

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Git

#Tip 021

Ignore Files Locally with Git Skip-Worktree

With git update-index --skip-worktree, you can ignore files only on your local machine – it doesn’t change anything in the repo, and your local edits aren’t visible to other developers.

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Git

#Tip 020

Optional Chaining: The Safe Way to Access Data

You can avoid “Cannot read property of undefined” errors by using optional chaining, which safely checks whether a value exists before accessing its properties.

const city = user?.profile?.address?.city ?? "Unknown";

Optional chaining lets you navigate deeply nested objects without writing multiple defensive checks – clean, safe, and modern.

Did you know?

JavaScript

#Tip 019

Write Cleaner Code with Guard Clauses

Instead of writing nested if statements, you can use guard clauses – early-return checks that immediately stop the function when the input is invalid. This makes your code cleaner, easier to read, and much easier to maintain.

function processString(value) {
    if (typeof value !== 'string') return null;
    if (value.length <= 3) return null;

    return value.toUpperCase();
}

Did you know?

JavaScript

#Tip 018

This collection of programming coding tips is a quick and easy way to learn something new – perfect for busy developers. No long explanations, no boring theory — just short, useful info in a “Did you know…” style.

You’ll find both basic things every programmer should know (at least in theory – but let’s be honest, our memory isn’t perfect and we often need Google or AI), and some funny or surprising facts that even experienced devs will enjoy.

Whether you’re just starting out, have been coding for years, or just like clicking on smart-looking stuff – there’s something here for you.

Get ready for a smile, a few “ah, now I get it!” moments, and maybe even a “good to know!”.

WARNING: Side effects may include sudden coding inspiration and a strong desire to share what you’ve learned with every developer around you.