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Results for “first”

Small, practical examples. Search by task or narrow things down below.

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Bash ScriptsArguments & decisions

Choose among several numeric ranges

Bash Scripts: An if-elif chain evaluates branches in order and executes the first match.

Bash Scripts✓ Tested
SQLSchema design & transactions

Commit multiple related changes together

SQL: The first transaction prepares the fixtures. The second commits both updates as one unit.

SQL✓ Tested
SQL ServerSchema design & transactions

Commit multiple related changes together

SQL Server: The first transaction prepares the fixtures. The second commits both updates as one unit.

SQL Server✓ Tested
PostgresSchema design & transactions

Commit multiple related changes together

Postgres: The first transaction prepares the fixtures. The second commits both updates as one unit.

Postgres✓ Tested
SQLiteSchema design & transactions

Commit multiple related changes together

SQLite: The first transaction prepares the fixtures. The second commits both updates as one unit.

SQLite✓ Tested
PostgresWindows & text

Compare a row with the previous row

Read a preceding value with LAG.

LAG✓ Tested
Bash ScriptsArguments & decisions

Consume positional arguments one at a time

Bash Scripts: Check the argument count before accessing the first parameter with nounset enabled.

Bash Scripts✓ Tested
Bash ScriptsArray operations

Count the elements in an array

Bash Scripts: The array length form counts assigned elements, not characters in the first value.

Bash Scripts✓ Tested
Arduino / CBinary values & packets

Encode a value as little-endian bytes

Arduino / C: Store the least significant byte first when the protocol requires it.

Arduino / C✓ Tested
CSSResponsive conditions & sizing

Enhance a layout above a minimum viewport width

CSS: A mobile-first min-width query adds columns when enough horizontal space is available.

CSS✓ Tested
Arduino / CArrays & embedded state

Find a sample range in one pass

Arduino / C: Initialize extrema from the first element of a nonempty array.

Arduino / C✓ Tested
C++Ordering & set operations

Find sorted set members missing from another set

C++: set_difference writes elements present in the first sorted input but absent from the second.

C++✓ Tested