wikimedia/mediawiki-extensions-Wikibase

import { Statement } from '@/definitions/wikibase-js-datamodel/Statement';

export default class TaintedChecker {
    public check( oldStatement: Statement|null, newStatement: Statement ): boolean {
        return oldStatement !== null &&
            !( oldStatement.getClaim().getMainSnak().equals( newStatement.getClaim().getMainSnak() ) ) &&
            oldStatement.getReferences().equals( newStatement.getReferences() ) &&
            !oldStatement.getReferences().isEmpty();
    }
}