Function measureCallback

packages/zone.js/test/performance/performance_setup.js:187–204

(api, ops)

  }

  function measureCallback(api, ops) {
    var times = ops.times;
    var displayText = ops.displayText;
    var rawData = ops.rawData;
    var summary = ops.summary;

    var name = api.method;
    var nativeName = getNativeMethodName(api.nativeMethod);
    var measure = averageMeasures(name, times);
    var nativeMeasure = averageMeasures(nativeName, times);
    displayText += `- ${name} costs ${measure} ms\n`;
    displayText += `- ${nativeName} costs ${nativeMeasure} ms\n`;
    var absolute = Math.floor(1000 * (measure - nativeMeasure)) / 1000;
    displayText += `# ${name} is ${absolute}ms slower than ${nativeName}\n`;
    rawData[name + '_measure'] = measure;
    rawData[nativeName + '_measure'] = nativeMeasure;
    summary[name] = absolute + 'ms';
  }

  function measureAddRemove(api, ops) {
    var times = ops.times;