The substring function returns a part of a given string.
The substring function returns a part of a given string.
substring(string, start) substring(string, start, length)
stringThe string to evaluate.
startThe position within string the substring begins
length Optional
The length of the substring. If omitted, the returned string will contain every character from the start position to the end of string.
A string.
As in other XPath functions, the position is not zero-based. The first character in the string has a position of 1, not 0.
Supported.
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https://developer.mozilla.org/en-US/docs/Web/XPath/Functions/substring