Results for “object update”
Small, practical examples. Search by task or narrow things down below.
Check for a hashtable key before reading it
PowerShell: ContainsKey distinguishes a missing key from a key whose value happens to be null.
PowerShell✓ Tested
Construct a record with named properties
PowerShell: PSCustomObject gives downstream pipeline commands meaningful property names.
PowerShell✓ Tested
Copy nested structured data independently
JavaScript: structuredClone creates an independent copy of supported structured values.
JavaScript✓ Tested
Copy nested structured data independently
TypeScript: structuredClone creates an independent copy of supported structured values.
TypeScript✓ Tested
Count items by group
Group repeated values and report each count.
Group-Object✓ Tested
Distinguish an own property from an inherited one
JavaScript: Object.hasOwn avoids depending on an object’s possibly shadowed hasOwnProperty method.
JavaScript✓ Tested
Distinguish an own property from an inherited one
TypeScript: Object.hasOwn avoids depending on an object’s possibly shadowed hasOwnProperty method.
TypeScript✓ Tested
Enumerate hashtable entries in a stable order
PowerShell: Sort entries by key when predictable output matters.
PowerShell✓ Tested
Filter items in a pipeline
Keep numbers that meet a condition.
Where-Object✓ Tested
Find differences between two collections
PowerShell: Compare-Object marks reference-only values with a left arrow and difference-only values with a right arrow.
PowerShell✓ Tested
Find members absent from another set
JavaScript: Negate a membership test to calculate the set difference.
JavaScript✓ Tested
Find members absent from another set
TypeScript: Negate a membership test to calculate the set difference.
TypeScript✓ Tested