[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2022-07-27 UTC."],[],[],null,["- [firebase](/docs/reference/js/v8/firebase).\n- [performance](/docs/reference/js/v8/firebase.performance).\n- Performance \nThe Firebase Performance Monitoring service interface.\n\nDo not call this constructor directly. Instead, use\n[`firebase.performance()`](/docs/reference/js/v8/firebase.performance).\n\nIndex\n\nProperties\n\n- [app](/docs/reference/js/v8/firebase.performance.Performance#app)\n- [dataCollectionEnabled](/docs/reference/js/v8/firebase.performance.Performance#datacollectionenabled)\n- [instrumentationEnabled](/docs/reference/js/v8/firebase.performance.Performance#instrumentationenabled)\n\nMethods\n\n- [trace](/docs/reference/js/v8/firebase.performance.Performance#trace)\n\nProperties\n\napp \napp: [App](/docs/reference/js/v8/firebase.app.App) \nThe [app](/docs/reference/js/v8/firebase.app.App) associated with the `Performance` service\ninstance.\n\nexample\n:\n\n var app = analytics.app;\n\n\ndataCollectionEnabled \ndataCollectionEnabled: boolean \nControls the logging of custom traces.\n\ninstrumentationEnabled \ninstrumentationEnabled: boolean \nControls the logging of automatic traces and HTTP/S network monitoring.\n\nMethods\n\ntrace\n\n- trace ( traceName : string ) : [Trace](/docs/reference/js/v8/firebase.performance.Trace)\n- Creates an uninitialized instance of [`trace`](/docs/reference/js/v8/firebase.performance.Trace) and returns\n it.\n\n Parameters\n -\n\n traceName: string \n The name of the trace instance.\n\n Returns [Trace](/docs/reference/js/v8/firebase.performance.Trace)\n\nThe Trace instance."]]
The Firebase Performance Monitoring service interface.
Do not call this constructor directly. Instead, use
firebase.performance()
.