mesh-tree/dist/helper/permutations.js

Utility functions for traversing the Medical Subject Heading (MeSH) tree

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

exports.default = function () {

  var r = [],
      arg = arguments,
      max = arg.length - 1;

  function helper(arr, i) {
    for (var j = 0, l = arg[i].length; j < l; j++) {

      var a = arr.slice(0); // clone arr
      a.push(arg[i][j]);

      if (i == max) {
        r.push(a);
      } else {
        helper(a, i + 1);
      }
    }
  }

  helper([], 0);

  return r;
};