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This Video Is Part of a Series This is Video 1 of our FREE Google Colab Tutorial Series! Check out the full playlist to master Colab ...

Welcome to Day 1 of the Python Series! If you're completely new to programming, you're in the right place. In this quick 1-minute ...

In this series: • Variables & Data Types • Operators • if/else & when • Loops • Functions • OOP • Null Safety • Collections ...

Reactive forms build the form's real structure and validation in TypeScript instead of the template, giving you more explicit, testable ...

A function component is the real, modern way to build a piece of UI in React, just a JavaScript function returning JSX. In this video ...

Passing props down through five levels just to reach one deeply nested component, called prop drilling, is a real, common pain ...

A controlled input keeps its value fully in sync with React state, the input never has memory of its own, React does. In this video ...

When the same chunk of markup, like an article card, needs to appear on several different pages, copy-pasting it everywhere is a ...

ERB is the templating language behind every .html.erb file, and it's really just HTML with two special tags for embedding real Ruby ...

useState gives a function component its own real, persistent piece of memory that survives re-renders and can trigger a new ...

Most real apps need the same seven routes for every resource: index, show, new, create, edit, update, destroy. Instead of writing ...

A system test drives a real, actual browser, clicking buttons and filling in forms exactly like a real user would, and Capybara is the ...

Ruby is the programming language Rails itself is written in, and before touching any Rails code at all, you need Ruby installed ...

A method packages up a piece of logic under one name so you can reuse it anywhere instead of rewriting the same code ...

Repeating an action without copy-pasting the same line over and over is one of the most useful things a program can do, and ...

Every controller action automatically renders a matching view, but you can also render something different, or wrap every page in ...

Angular ships with a real, complete testing setup out of the box, Jasmine for writing tests and Karma for running them in a real ...

Rails ships a generator that scaffolds a whole controller file for you in one command, and knowing what it actually creates saves ...

ngIf is Angular's real way to add or completely remove an element from the page based on a condition, not just visually hide it.

ActiveRecord is what turns a plain Ruby model into something that can talk to your database, no SQL required. In this video you'll ...