Results for “on”
Small, practical examples. Search by task or narrow things down below.
Require a form field
HTML: Learn how to require a form field in a complete browser example.
HTML✓ Tested
Require a locally available image
Docker / Compose: The never pull policy fails for missing images instead of attempting a download.
Docker / Compose✓ Tested
Require a minimum text length
Require a minimum text length with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Require a nonempty text value
HTML: The required attribute makes an empty text control fail native constraint validation.
HTML✓ Tested
Require a value with NOT NULL
SQL: Declare required fields at the database boundary, not only in application validation.
SQL✓ Tested
Require a value with NOT NULL
SQL Server: Declare required fields at the database boundary, not only in application validation.
SQL Server✓ Tested
Require a value with NOT NULL
Postgres: Declare required fields at the database boundary, not only in application validation.
Postgres✓ Tested
Require a value with NOT NULL
SQLite: Declare required fields at the database boundary, not only in application validation.
SQLite✓ Tested
Require an input value
Require an input value with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Require every bit in a mask
Arduino / C: Masking followed by equality tests whether all required flags are set.
Arduino / C✓ Tested
Require numeric values on a chosen step
HTML: The step interval is measured from the minimum value when one is provided.
HTML✓ Tested
Require two conditions to be true
Python: Combine a lower and an upper bound to check whether a value is in range.
Python✓ Tested