d3-jsnext/src/compat/array.js

d3, but futuristic

import { d3_array } from '../core/array';
import { d3_document } from '../core/document';

// Redefine d3_array if the browser doesn’t support slice-based conversion.
if (d3_document) {
  try {
    d3_array(d3_document.documentElement.childNodes)[0].nodeType;
  } catch (e) {
    d3_array = function(list) {
      var i = list.length, array = new Array(i);
      while (i--) array[i] = list[i];
      return array;
    };
  }
}