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

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HTMLTables & list numbering

Continue an ordered list at a chosen number

HTML: The start attribute controls the initial ordinal without changing item text.

HTML✓ Tested
CSSType & reading flow

Control tab width in preformatted content

CSS: Tab-size defines the interval of tab stops in a preformatted block.

CSS✓ Tested
CSSVisual treatment & accessibility

Control the size of a repeated background tile

CSS: Background-size sets the rendered dimensions of each repeated background image.

CSS✓ Tested
C++Tasks & synchronization

Convert a duration to another unit explicitly

C++: duration_cast converts units and truncates fractional integer units.

C++✓ Tested
PythonDates & time zones

Convert a duration to hours and minutes

Python: Use divmod to split nonnegative whole seconds into display components.

Python✓ Tested
Bash ScriptsVariables & text

Convert a string to lowercase

Normalize a text value using Bash expansion.

lowercase✓ Tested
PythonDates & time zones

Convert a Unix timestamp to aware UTC

Python: Supply timezone.utc so the result does not depend on the machine time zone.

Python✓ Tested
Bash ScriptsParameter expansion

Convert a variable to uppercase

Bash Scripts: Double caret transforms matching lowercase characters in Bash 4 or later.

Bash Scripts✓ Tested
PythonDates & time zones

Convert an aware datetime to another offset

Python: Use astimezone for conversion; replacing tzinfo alone does not convert an instant.

Python✓ Tested
JavaDates & time zones

Convert an instant to a regional timezone

Java: Use ZonedDateTime with a named zone to apply that zone’s offset rules.

Java✓ Tested
PowerShellHashtables & object records

Convert an object’s properties into a hashtable

PowerShell: Enumerate PSObject.Properties when the set of property names is known only at runtime.

PowerShell✓ Tested
C++Text validation & parsing

Convert ASCII text to lowercase safely

C++: Cast each byte to unsigned char before using the cctype function.

C++✓ Tested