bytes starts-with for bytes

Check if bytes starts with a pattern.

Signature

> bytes starts-with (pattern) ...rest

Parameters

• pattern: the pattern to match
• ...rest: for a data structure input, check if bytes at the given cell paths start with the pattern

Examples

Checks if binary starts with 0x[1F FF AA]

> 0x[1F FF AA AA] | bytes starts-with 0x[1F FF AA]
true

Checks if binary starts with 0x[1F]

> 0x[1F FF AA AA] | bytes starts-with 0x[1F]
true

Checks if binary starts with 0x[1F]

> 0x[1F FF AA AA] | bytes starts-with 0x[11]
false