Method inits

src/main/java/groovy/util/GroovyCollections.java:97–105

@since 2.5.0

(Iterable<T> collections)

     * @since 2.5.0
     */
    public static <T> List<List<T>> inits(Iterable<T> collections) {
        List<T> copy = DefaultGroovyMethods.toList(collections);
        List<List<T>> result = new ArrayList<>();
        for (int i = copy.size(); i >= 0; i--) {
            List<T> next = copy.subList(0, i);
            result.add(next);
        }
        return result;
    }

    /**
     * @since 2.5.0