Results for “nan”
Small, practical examples. Search by task or narrow things down below.
Detect NaN without converting the input
JavaScript: Number.isNaN tests the special numeric value instead of applying string-to-number conversion.
JavaScript✓ Tested
Detect NaN without converting the input
TypeScript: Number.isNaN tests the special numeric value instead of applying string-to-number conversion.
TypeScript✓ Tested
Reject infinite and NaN numeric values
C++: std::isfinite excludes special floating-point values.
C++✓ Tested
Reject infinity and NaN
C#: Double.IsFinite distinguishes usable finite numeric inputs from special values.
C#✓ Tested
Reject NaN and infinite numeric inputs
Python: Use isfinite before computations that require an ordinary finite float.
Python✓ Tested
Reject NaN and infinite values
PowerShell: Double.IsFinite excludes numeric values unsuitable for ordinary bounded calculations.
PowerShell✓ Tested
Reject NaN and infinite values
C: isfinite detects whether a floating-point value is an ordinary finite number.
C✓ Tested
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
Detect an invalid Date object
JavaScript: An invalid Date has a NaN time value.
JavaScript✓ Tested
Detect an invalid Date object
TypeScript: An invalid Date has a NaN time value.
TypeScript✓ Tested
Find the commit responsible for a line
Inspect line attribution in a stable machine-readable format.
blame✓ Tested