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Small, practical examples. Search by task or narrow things down below.

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CSSGetting Started

Create two equal grid columns

CSS: Learn how to create two equal grid columns in a complete browser example.

CSS✓ Tested
Bash ScriptsGetting Started

Declare a fixed configuration value

Bash Scripts: Declare a fixed configuration value with a small standalone Bash program.

Bash Scripts✓ Tested
GoGetting Started

Declare a fixed-size array

Declare a fixed-size array using a complete Go program with explicit sample inputs.

Go✓ Tested
Docker / ComposeCompose applications

Declare a named volume in Compose

Mount persistent storage at a service path.

Compose✓ Tested
HTMLMetadata & document links

Declare a preferred canonical URL

HTML: A canonical link identifies the preferred public URL for duplicate representations of a document.

HTML✓ Tested
RustGetting Started

Declare a typed constant

Declare a typed constant in a complete Rust program using the standard library.

Rust✓ Tested
HTMLMetadata & document links

Declare an indexing preference for a draft page

HTML: A robots meta element can request noindex while allowing link following.

HTML✓ Tested
GoGetting Started

Declare and update a variable

Declare and update a variable using a complete Go program with explicit sample inputs.

Go✓ Tested
HTMLDocument structure

Declare document language and encoding

Set the HTML language, UTF-8 encoding and viewport for accessible responsive content.

HTML✓ Tested
HTMLGetting Started

Declare the document language and encoding

HTML: Learn how to declare the document language and encoding in a complete browser example.

HTML✓ Tested
CBinary formats & structured parsing

Decode a 16-bit big-endian integer

C: Promote bytes to an unsigned integer type before combining shifted values.

C✓ Tested
JavaEncoding & structured values

Decode a form query parameter

Java: URLDecoder reverses form encoding and treats plus as a space.

Java✓ Tested