»substr Function

substr extracts a substring from a given string by offset and length.

substr(string, offset, length)

substr(string, offset, length)

»Examples

> substr("hello world", 1, 4)
ello

> substr("hello world", 1, 4)ello

The offset and length are both counted in unicode characters rather than bytes:

> substr("🤔🤷", 0, 1)
🤔

> substr("🤔🤷", 0, 1)🤔