Results for “Functions & data types”
Small, practical examples. Search by task or narrow things down below.
Assign a network-scoped alias
Docker / Compose: An alias gives an endpoint an additional name on that network.
Docker / Compose✓ Tested
Attach an existing container to another network
Docker / Compose: network connect adds an attachment without recreating the container.
Docker / Compose✓ Tested
Attach configuration when registering a handler
jQuery: event.data carries the registration-time data object.
jQuery✓ Tested
Avoid a shared mutable default argument
Python: Create a fresh list inside the function when the optional argument is omitted.
Python✓ Tested
Build a URL query string from values
TypeScript: URLSearchParams handles query escaping and repeated parameter appends.
TypeScript✓ Tested
Build an object from key-value entries
TypeScript: Object.fromEntries converts an iterable of pairs into ordinary own properties.
TypeScript✓ Tested
Cache repeated pure function calls
Python: Use lru_cache to avoid recomputing results for identical hashable arguments.
Python✓ Tested
Calculate a page count with ceiling division
TypeScript: Use Math.ceil for a nonnegative item count and a positive page size.
TypeScript✓ Tested
Calculate a simple total
TypeScript: Multiply a unit price by a quantity, then add a delivery fee.
TypeScript✓ Tested
Calculate differences between adjacent readings
TypeScript: Slice off the first value and compare each remaining value with its predecessor.
TypeScript✓ Tested
Calculate integers beyond Number’s precise range
TypeScript: Use BigInt operands together to avoid precision loss.
TypeScript✓ Tested
Call a library function
TypeScript: Use a standard absolute-value function with a small negative number.
TypeScript✓ Tested