Results for “associative array”
Small, practical examples. Search by task or narrow things down below.
Look up values in an associative array
Use named keys for a small in-memory configuration table.
dictionary✓ Tested
Read an optional associative-array entry
Bash Scripts: Use a fallback expansion when a map key may not be present under nounset.
Bash Scripts✓ Tested
Visit associative-array keys in a stable order
Bash Scripts: Associative arrays have no defined iteration order, so sort their keys explicitly.
Bash Scripts✓ Tested
Allocate a zeroed array
Check calloc, use the allocation, and release it in C.
C✓ Tested
Allocate and free a typed array
C: Use sizeof on the pointed-to type and check allocation success before writing.
C✓ Tested
Append an item to a small array
PowerShell: The plus-equals operator builds a new array; use a generic list for repeated large additions.
PowerShell✓ Tested
Append several items to an array
Bash Scripts: Array-plus-equals adds elements without losing spaces inside a quoted item.
Bash Scripts✓ Tested
Append to an array signal immutably
Append to an array signal immutably with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Append to an array without mutating state
Append to an array without mutating state with a small React component and explicit browser behavior.
React✓ Tested
Build a JSON array from rows
Aggregate ordered text values into JSON.
json_group_array✓ Tested
Calculate a fixed array’s element count
Arduino / C: Calculate a fixed array’s element count on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Check an array allocation size before multiplying
C: Compare the requested element count against SIZE_MAX divided by element size.
C✓ Tested