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CGetting Started

Measure a short text value

C: Read the length of an ASCII string. Non-ASCII text may use multiple code units or bytes depending on the language.

C✓ Tested
CSSTypography

Preserve whitespace while wrapping

Use CSS pre-wrap for multiline text that retains spaces.

CSS✓ Tested
SQLSubqueries & ranked selection

Report duplicate business values and their frequency

SQL: Group by a candidate business key and retain only groups with multiple rows.

SQL✓ Tested
SQL ServerSubqueries & ranked selection

Report duplicate business values and their frequency

SQL Server: Group by a candidate business key and retain only groups with multiple rows.

SQL Server✓ Tested
PostgresSubqueries & ranked selection

Report duplicate business values and their frequency

Postgres: Group by a candidate business key and retain only groups with multiple rows.

Postgres✓ Tested
SQLiteSubqueries & ranked selection

Report duplicate business values and their frequency

SQLite: Group by a candidate business key and retain only groups with multiple rows.

SQLite✓ Tested
JavaScriptRegular expressions & URL encoding

Validate a whole ASCII identifier

JavaScript: Use an anchored expression without the multiline flag and reject a trailing line break explicitly.

JavaScript✓ Tested
TypeScriptRegular expressions & URL encoding

Validate a whole ASCII identifier

TypeScript: Use an anchored expression without the multiline flag and reject a trailing line break explicitly.

TypeScript✓ Tested