commonPrefixLength

lib.strings.commonPrefixLength

Docs pulled from | This Revision | 10 minutes ago

Returns the length of the prefix that appears in both strings a and b.

Inputs

a: 1. Function argument
b: 2. Function argument

Type

commonPrefixLength :: string -> string -> int

Noogle detected

Implementation

The following is the current implementation of this function.

commonPrefixLength =
    a: b:
    let
      m = lib.min (stringLength a) (stringLength b);
      go =
        i:
        if i >= m then
          m
        else if substring i 1 a == substring i 1 b then
          go (i + 1)
        else
          i;
    in
    go 0;