code: function standardIndexing(selector, maxLen) {
    if (isUndefined(selector) || selector === null) {
      return null;
    }
  
    // Handle boolean case if applicable
    var boolIdxResult = attemptBoolIndexing(selector, maxLen);
    if (!isUndefined(boolIdxResult)) {
      return boolIdxResult;
    }
  
    // Handle integer indexing
    var opts = resolverOpts(RESOLVE_MODE.INT, maxLen);
    return resolveSelector(selector, opts);
  }
docs: Standard row or element indexing 'maxLen' should be the total length to index against. Returns null if all rows/elements should be selected in order.