Results for “collection”
Small, practical examples. Search by task or narrow things down below.
List an object’s own enumerable keys
JavaScript: Object.keys omits inherited and non-enumerable properties.
JavaScript✓ Tested
List an object’s own enumerable keys
TypeScript: Object.keys omits inherited and non-enumerable properties.
TypeScript✓ Tested
Locate a value in a sorted array
Java: Use Arrays.binarySearch only after establishing ascending order.
Java✓ Tested
Measure content, padding, and borders separately
jQuery: width, innerWidth, and outerWidth measure different parts of the box.
jQuery✓ Tested
Preallocate a slice’s capacity
Preallocate a slice’s capacity using a complete Go program with explicit sample inputs.
Go✓ Tested
Preserve map insertion order
Java: Use LinkedHashMap when iteration should follow the order keys were first added.
Java✓ Tested
Prevent runtime changes to top-level properties
JavaScript: Object.freeze prevents ordinary top-level mutations; Reflect.set reports the rejected update without throwing.
JavaScript✓ Tested
Prevent runtime changes to top-level properties
TypeScript: Object.freeze prevents ordinary top-level mutations; Reflect.set reports the rejected update without throwing.
TypeScript✓ Tested
Process a FIFO queue
C#: Queue removes elements in the order they were enqueued.
C#✓ Tested
Process items by numeric priority
C#: PriorityQueue removes the item with the smallest priority value first.
C#✓ Tested
Read an element’s document coordinates
jQuery: offset returns coordinates relative to the document.
jQuery✓ Tested
Read an object’s own enumerable values
JavaScript: Object.values provides values without their corresponding keys.
JavaScript✓ Tested