Results for “valid”
Small, practical examples. Search by task or narrow things down below.
Track which union member is currently valid
C: An explicit tag tells callers which overlaid union value to read.
C✓ Tested
Use native required-field validation
Use native required-field validation with a small React component and explicit browser behavior.
React✓ Tested
Validate a complete floating-point input
C: strtod exposes both the stopping position and range errors; reject nonfinite results when required.
C✓ Tested
Validate a complete identifier
Java: String.matches requires the regular expression to match the entire input.
Java✓ Tested
Validate a complete identifier
C++: regex_match requires the pattern to match the complete input sequence.
C++✓ Tested
Validate a complete identifier with a regex
C#: Use absolute anchors and a timeout so the regex checks the complete input with a bounded execution time.
C#✓ Tested
Validate a complete numeric serial command
Arduino / C: Check for digits, an end pointer, and an application-specific range.
Arduino / C✓ Tested
Validate a field when focus leaves it
jQuery: focusout bubbles and can support delegated form validation.
jQuery✓ Tested
Validate a field when focus leaves it
Validate a field when focus leaves it with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Validate a finite numeric value without coercion
JavaScript: Number.isFinite rejects numeric strings as well as NaN and infinity.
JavaScript✓ Tested
Validate a finite numeric value without coercion
TypeScript: Number.isFinite rejects numeric strings as well as NaN and infinity.
TypeScript✓ Tested
Validate a required argument
Java: Use requireNonNull with a useful message at an API boundary.
Java✓ Tested