Results for “is”
Small, practical examples. Search by task or narrow things down below.
Check array membership with includes
JavaScript: includes uses SameValueZero comparison, which also matches NaN.
JavaScript✓ Tested
Check array membership with includes
TypeScript: includes uses SameValueZero comparison, which also matches NaN.
TypeScript✓ Tested
Check both ends of a range
Arduino / C: Check both ends of a range on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Check EEPROM capacity before a write
Arduino / C: length reports the available address count for this board.
Arduino / C✓ Tested
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
Check for a substring
Perform a case-sensitive JavaScript substring check.
JavaScript✓ Tested
Check JSONB containment
Test whether an object contains a key-value pair.
jsonb✓ Tested
Check memory usage
Show memory and swap totals in human-readable units. The available column estimates memory usable by new applications.
memory✓ Tested
Check out another branch in a second working tree
Git: A linked worktree shares repository objects while maintaining a separate checked-out branch.
Git✓ Tested
Check the Gregorian leap-year rule
Java: Use Year.isLeap rather than checking divisibility by four alone.
Java✓ Tested
Check whether a command can be resolved
PowerShell: Get-Command with a local error override supports an expected missing-command lookup.
PowerShell✓ Tested
Check whether any item matches
JavaScript: some stops once a predicate succeeds.
JavaScript✓ Tested