crossfilter/src/filter.js

Fast multidimensional filtering for coordinated views.

function crossfilter_filterExact(bisect, value) {
  return function(values) {
    var n = values.length;
    return [bisect.left(values, value, 0, n), bisect.right(values, value, 0, n)];
  };
}

function crossfilter_filterRange(bisect, range) {
  var min = range[0],
      max = range[1];
  return function(values) {
    var n = values.length;
    return [bisect.left(values, min, 0, n), bisect.left(values, max, 0, n)];
  };
}

function crossfilter_filterAll(values) {
  return [0, values.length];
}