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CBinary formats & structured parsing

Convert ASCII text to lowercase safely

C: Cast to unsigned char before calling ctype functions on a possibly signed char.

C✓ Tested
CStrings

Convert ASCII text to uppercase

Convert characters with toupper while avoiding signed-char undefined behavior.

C✓ Tested
PowerShellStructured formats & encodings

Convert between hexadecimal text and bytes

PowerShell: Use the .NET hexadecimal helpers instead of parsing byte pairs manually.

PowerShell✓ Tested
JavaScriptNumbers & numeric validation

Convert between integer bases

JavaScript: Supply a radix when parsing a nondecimal integer string.

JavaScript✓ Tested
TypeScriptNumbers & numeric validation

Convert between integer bases

TypeScript: Supply a radix when parsing a nondecimal integer string.

TypeScript✓ Tested
JavaEncoding & structured values

Convert bytes to hexadecimal and back

Java: Use HexFormat for a standard-library representation of raw bytes.

Java✓ Tested
JavaScriptUTC date operations

Convert epoch milliseconds to whole seconds

JavaScript: JavaScript Date stores milliseconds while many APIs use Unix seconds.

JavaScript✓ Tested
TypeScriptUTC date operations

Convert epoch milliseconds to whole seconds

TypeScript: JavaScript Date stores milliseconds while many APIs use Unix seconds.

TypeScript✓ Tested
JavaDates & time zones

Convert epoch seconds into an instant

Java: Instant represents a UTC timeline point independent of the default timezone.

Java✓ Tested
PythonText validation & encoding

Convert hexadecimal text to bytes

Python: Use bytes.fromhex for a readable byte representation and hex for the reverse conversion.

Python✓ Tested
PythonGetting Started

Convert known numeric text to an integer

Python: Convert a trusted literal to an integer before adding. Validate external input before converting it.

Python✓ Tested
JavaGetting Started

Convert known numeric text to an integer

Java: Convert a trusted literal to an integer before adding. Validate external input before converting it.

Java✓ Tested