Results for “Input constraints”
Small, practical examples. Search by task or narrow things down below.
Treat dynamic regex input as literal text
Java: Use Pattern.quote so metacharacters in a search term lose their special meaning.
Java✓ Tested
Type a function’s inputs and output
Catch mismatched arguments during compilation.
function✓ Tested
Update an object with a readonly input
Create a changed copy while retaining the original.
readonly✓ 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 an email input
Use browser constraint validation for a required HTML email field.
HTML✓ Tested
Capture standard output and standard error separately
Bash Scripts: Use distinct redirections when diagnostic text should not be mixed with data.
Bash Scripts✓ Tested
Compare two generated sorted streams
Bash Scripts: Process substitution lets a command consume another command’s output as a file-like input.
Bash Scripts✓ Tested
Enable and use foreign keys
Turn on relationship enforcement for the connection.
foreign keys✓ Tested
Read a button with the internal pull-up
Treat a grounded input as a pressed button.
INPUT_PULLUP✓ Tested
Read complete lines into an array
Bash Scripts: Mapfile with -t removes each line terminator but preserves other whitespace.
Bash Scripts✓ Tested
Read from a dedicated file descriptor
Bash Scripts: An explicitly opened descriptor keeps the script’s ordinary standard input available.
Bash Scripts✓ Tested
Read null-delimited filenames into an array
Bash Scripts: A null delimiter preserves spaces and embedded newlines in filenames.
Bash Scripts✓ Tested