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Bash ScriptsFunctions & arguments

Return text from a shell function

Capture a function’s output with command substitution.

function✓ Tested
TypeScriptTypes & functions

Return the first item with a generic function

Preserve the element type while allowing empty arrays.

generics✓ Tested
TypeScriptUtilities & async

Return typed data from an async function

Await a Promise and handle failures explicitly.

async✓ Tested
JavaScriptArray restructuring

Reverse a copy while preserving the original

JavaScript: Copy before reverse because reverse mutates the array it receives.

JavaScript✓ Tested
TypeScriptArray restructuring

Reverse a copy while preserving the original

TypeScript: Copy before reverse because reverse mutates the array it receives.

TypeScript✓ Tested
PowerShellArray operations

Reverse a copy while preserving the source

PowerShell: Clone the array before using Array.Reverse because Reverse mutates its argument.

PowerShell✓ Tested
PowerShellDates & numeric validation

Round a decimal with a chosen midpoint rule

PowerShell: Use decimal input and an explicit rounding policy for a reproducible decimal result.

PowerShell✓ Tested
PowerShellGetting Started

Run a first PowerShell statement

PowerShell: Run a first PowerShell statement using PowerShell 7.

PowerShell✓ Tested
jQueryEvents

Run an event handler once

Use jQuery one for a handler that removes itself after the first event.

jQuery✓ Tested
PowerShellFunctions & parameter validation

Run cleanup after a caught exception

PowerShell: Use finally for cleanup that must occur after either success or failure.

PowerShell✓ Tested
JavaScriptPromises & iteration protocols

Run cleanup after a promise settles

JavaScript: finally runs after success or failure and normally preserves the original outcome.

JavaScript✓ Tested
TypeScriptPromises & iteration protocols

Run cleanup after a promise settles

TypeScript: finally runs after success or failure and normally preserves the original outcome.

TypeScript✓ Tested