tourism-wxapp/node_modules/lunr/perf/vector_test.js

(function () {

  var setup = function () {
    var index, val

    var v1 = new lunr.Vector,
        v2 = new lunr.Vector

    for (var i = 0; i < 1000; i++) {
      index = Math.floor(i + Math.random() * 100)
      val = Math.random() * 100
      v1.insert(i, val)
    }

    for (var i = 0; i < 1000; i++) {
      index = Math.floor(i + Math.random() * 100)
      val = Math.random() * 100
      v2.insert(i, val)
    }
  }

  bench('vector#magnitude', function () {
    v1.magnitude()
  }, { setup: setup })

  bench('vector#dot', function () {
    v1.dot(v2)
  }, { setup: setup })

  bench('vector#similarity', function () {
    v1.similarity(v2)
  }, { setup: setup })
})()