apoc.text.hammingDistance

Function APOC Core

apoc.text.hammingDistance(text1, text2) - compare the given strings with the Hamming distance algorithm.

Signature

apoc.text.hammingDistance(text1 :: STRING?, text2 :: STRING?) :: (INTEGER?)

Name	Type	Default
text1	STRING?	null
text2	STRING?	null

Name

Type

Default

text1

STRING?

null

text2

STRING?

null

RETURN apoc.text.hammingDistance("Neo4j", "Neo4j") AS output;

Table 1. Results
output
0

RETURN apoc.text.hammingDistance("Neo4j", "Neoj4") AS output;

Table 2. Results
output
2

The provided strings must be the same length, otherwise this procedure will throw an exception, as shown in the example below:

RETURN apoc.text.hammingDistance("Neo4j Aura", "Neo4j Graph Database") AS output;

Table 3. Results
Failed to invoke function `apoc.text.hammingDistance`: Caused by: java.lang.IllegalArgumentException: CharSequences must have the same length