Update labels

To add or remove labels to a node, use .set and .remove with the node method .label.

Add labels

const movie = new Cypher.Node();
const clause = new Cypher.Match(new Cypher.Pattern(movie)).set(movie.label("NewLabel"), movie.label("Another label"));

MATCH (this0)
SET
    this0:NewLabel,
    this0:`Another Label`

Remove labels

const movie = new Cypher.Node();
const clause = new Cypher.Match(new Cypher.Pattern(movie)).remove(movie.label("NewLabel"));

MATCH (this0)
REMOVE this0:NewLabel

Set dynamic labels

In some cases, the labels to add or remove must be defined dynamically, such as the result of an expression. To achieve this, the .label methods accepts an expression instead of a string.

For example, to copy all the labels from one node to another, the function labels() can be used as the expression to .label:

new Cypher.Match(new Cypher.Pattern(movie)).set(movie.label(Cypher.labels(anotherNode)));

This correctly applies the syntax for dynamic labels:

MATCH (this0)
SET
    this0:$(labels(this1))