Results for “fold”
Small, practical examples. Search by task or narrow things down below.
Branch on whether a pattern exists
Linux Commands: Use grep -q in a conditional so an ordinary no-match result is not an unhandled failure.
Linux Commands✓ Tested
Build a JSON array from rows
Aggregate ordered text values into JSON.
json_group_array✓ Tested
Build a portable file path
Combine directory and filename using the platform separator.
Join-Path✓ Tested
Build a query from several named stages
SQLite: Separate row selection from aggregation using two common table expressions.
SQLite✓ Tested
Build an image with a default command
Docker / Compose: Build an image with a default command with a complete introductory Dockerfile.
Docker / Compose✓ Tested
Build text incrementally
Build text incrementally using a complete Go program with explicit sample inputs.
Go✓ Tested
Calculate a cumulative integer percentage
SQLite: Divide a running window sum by the complete total using a unique ordering key.
SQLite✓ Tested
Calculate a SHA-256 text digest
Calculate a SHA-256 text digest using a complete Go program with explicit sample inputs.
Go✓ Tested
Calculate a subtotal
Calculate a subtotal using a complete Go program with explicit sample inputs.
Go✓ Tested
Calculate a total for each group
SQLite: Group nonmissing categories and calculate separate totals.
SQLite✓ Tested
Calculate a value with SELECT
SQLite: Evaluate a small arithmetic expression on the database server.
SQLite✓ Tested
Calculate an order subtotal
Calculate an order subtotal in a complete Rust program using the standard library.
Rust✓ Tested