Results for “Records & reliable control flow”
Small, practical examples. Search by task or narrow things down below.
Disable a control through its model
Disable a control through its model with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Disable a related group of controls
HTML: A disabled fieldset prevents editing its descendant controls and omits them from form submission.
HTML✓ Tested
Divide decimal values with controlled precision
Java: Choose both scale and rounding for a quotient that does not terminate in base ten.
Java✓ Tested
Find records without any related rows
SQL: NOT EXISTS avoids the NULL pitfalls of NOT IN when the subquery column can be missing.
SQL✓ Tested
Find records without any related rows
SQL Server: NOT EXISTS avoids the NULL pitfalls of NOT IN when the subquery column can be missing.
SQL Server✓ Tested
Find records without any related rows
Postgres: NOT EXISTS avoids the NULL pitfalls of NOT IN when the subquery column can be missing.
Postgres✓ Tested
Find records without any related rows
SQLite: NOT EXISTS avoids the NULL pitfalls of NOT IN when the subquery column can be missing.
SQLite✓ Tested
Group records by a field
Python: Accumulate related values with defaultdict without checking whether each group exists.
Python✓ Tested
Group records into map entries
JavaScript: Initialize an array for a missing Map key before appending its values.
JavaScript✓ Tested
Group records into map entries
TypeScript: Initialize an array for a missing Map key before appending its values.
TypeScript✓ Tested
Group related controls with a fieldset and legend
Group related controls with a fieldset and legend with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Group related form controls semantically
Group related form controls semantically with a small React component and explicit browser behavior.
React✓ Tested