Generate Combinations Without Repetition

generate-combinations.js

function* generateCombinations(array) {
    if (array.length == 0) {
        return;
    }
    const head = array[0];
    const tail = array.slice(1);
    yield [head];
    for (const comb of generateCombinations(tail)) {
        yield comb;
        yield [head].concat(comb);
    }
}