Input

Forms and EditForm

Learn how Blazor's EditForm component, EditContext, and built-in input components work together to build validated forms.

Common Controls

A tour of MAUI's core display and interactive controls — Label, Button, CollectionView, Switch, and progress indicators — and the patterns that make them MVVM-…

Handling User Input

How Entry, Editor, GestureRecognizers, and ViewModel-based validation work together to capture and validate user input in MAUI.

The n and N Commands

Understand how sed's lowercase n and uppercase N commands pull additional input lines into processing, and how they differ in what they do to the pattern space.

Analog Input and PWM Output

Understand how analogRead() digitizes voltages with a 10-bit ADC and how analogWrite() fakes analog output using pulse-width modulation, plus scaling values wi…

Digital Input and Output

Learn how Arduino pins read and drive binary HIGH/LOW signals using pinMode(), digitalWrite(), and digitalRead(), including the role of pull-up and pull-down r…

Your First Perl Script

A hands-on walkthrough of structuring, running, and debugging a complete beginner Perl script that reads, processes, and prints data.

Input Types

Learn how GraphQL input object types bundle structured arguments together, especially for mutations, and how they differ from regular object types.

Input and Output in Python

How to read user input with input() and display output with print(), including formatting with f-strings, sep, end, and format().

Input and Output in Go

Learn to print formatted output with fmt.Printf and read user input using fmt.Scanln and bufio.Reader.

Input and Output in Rust

Learn how to print output with println! and print!, and read user input using std::io in Rust.

Input and Output in Kotlin

Learn how to print output with println()/print() and read user input with readLine() in Kotlin.

What Is a Neural Network?

An introduction to neural networks as layered compositions of weighted sums and nonlinear activations, and how they learn through forward passes and training.

Buttons and User Input

Learn how Jetpack Compose handles clicks, text entry, and other user interactions through composables like Button, TextField, and gesture modifiers.

Buttons and User Input in SwiftUI

Learn how SwiftUI captures user intent through Button, Toggle, Slider, Stepper, and TextField, and how actions drive state changes in a declarative UI.

Form Input Bindings with v-model

Details how v-model implements two-way binding on form elements and components, what it compiles down to, and its modifiers and pitfalls.

Input and Output Decorators

Understand how @Input() and @Output() enable parent-child component communication in Angular, including binding syntax, EventEmitter, and input transforms.

Signal Inputs and model()

Learn Angular's signal-based input() and model() APIs, the modern replacement for @Input()/@Output() that integrates natively with signals and two-way binding.

Pipes and Redirection

Learn how the shell wires standard input, output, and error between commands and files using redirection operators and pipes to build powerful command chains.