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C++Getting Started

Visit every item in a collection

C++: Print each element in the collection’s original order.

C++✓ Tested
CGetting Started

Visit every item in a collection

C: Print each element in the collection’s original order.

C✓ Tested
CSSLayout

Wrap a row of items

Allow CSS flex items to wrap when a row runs out of space.

CSS✓ Tested
PowerShellFiles & paths

Create a directory if needed

Ensure a directory exists before writing output.

New-Item✓ Tested
PowerShellFiles & paths

List files by extension

Enumerate regular files and return their names in order.

Get-ChildItem✓ Tested
PythonGetting Started

Read the first collection element

Python: Access index zero only after establishing that the collection is nonempty.

Python✓ Tested
C#Getting Started

Read the first collection element

C#: Access index zero only after establishing that the collection is nonempty.

C#✓ Tested
JavaGetting Started

Read the first collection element

Java: Access index zero only after establishing that the collection is nonempty.

Java✓ Tested
JavaScriptGetting Started

Read the first collection element

JavaScript: Access index zero only after establishing that the collection is nonempty.

JavaScript✓ Tested
TypeScriptGetting Started

Read the first collection element

TypeScript: Access index zero only after establishing that the collection is nonempty.

TypeScript✓ Tested
C++Getting Started

Read the first collection element

C++: Access index zero only after establishing that the collection is nonempty.

C++✓ Tested
CGetting Started

Read the first collection element

C: Access index zero only after establishing that the collection is nonempty.

C✓ Tested