Version: v0.7.1 - Beta.  We welcome contributors & feedback.

Regex.startIndex

startIndex($index)

Description

Set the position within the matched string, from which to start applying the regex. (Default: 1)

A negative $index counts from the end of the matched string.

$nums = '123 456 789'

$nums.match(r'\d+'.startIndex(4))
//= '456'

$nums.match(r'\d+'.startIndex(-4))
//= '789'