Results for “IS NULL”
Small, practical examples. Search by task or narrow things down below.
Read an unpressed button with an internal pull-up
Arduino / C: An open input configured with INPUT_PULLUP reads high.
Arduino / C✓ Tested
Read and total a flash lookup table
Arduino / C: Array size can be computed at compile time even for a flash-resident table.
Arduino / C✓ Tested
Read back a configured digital output
Arduino / C: digitalRead observes the pin’s digital level after an output write.
Arduino / C✓ Tested
Read bytes from a chosen file offset
C: Check fseek before reading so an unsupported or invalid seek is not ignored.
C✓ Tested
Read characters without confusing EOF with a byte
C: Store fgetc in int so every unsigned-char value remains distinguishable from EOF.
C✓ Tested
Read checked options
Collect checked checkbox values with jQuery map and get.
jQuery✓ Tested
Read date components in UTC
JavaScript: UTC accessors avoid differences caused by the machine’s local timezone.
JavaScript✓ Tested
Read named columns from a table
SQL: Choose the columns needed and request a deterministic row order.
SQL✓ Tested
Read named columns from a table
SQL Server: Choose the columns needed and request a deterministic row order.
SQL Server✓ Tested
Read named columns from a table
Postgres: Choose the columns needed and request a deterministic row order.
Postgres✓ Tested
Read named columns from a table
SQLite: Choose the columns needed and request a deterministic row order.
SQLite✓ Tested
Read named fields from a successful regex match
PowerShell: The Matches table is updated after a successful scalar match operation.
PowerShell✓ Tested