PerformanceNavigationTiming.type

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The type read-only property returns a string representing the type of navigation. The value must be one of the following:

navigate
Navigation started by clicking a link, entering the URL in the browser's address bar, form submission, or initializing through a script operation other than reload and back_forward as listed below.
reload
Navigation is through the browser's reload operation or location.reload().
back_forward
Navigation is through the browser's history traversal operation.
prerender
Navigation is initiated by a prerender hint.

This property is Read only .

Syntax

perfEntry.type;

Return Value

A string which is one of the values listed above.

Example

The following example illustrates this property's usage.

function print_nav_timing_data() {
  // Use getEntriesByType() to just get the "navigation" events
  var perfEntries = performance.getEntriesByType("navigation");

  for (var i=0; i < perfEntries.length; i++) {
    console.log("= Navigation entry[" + i + "]");
    var p = perfEntries[i];
    // dom Properties
    console.log("DOM content loaded = " + (p.domContentLoadedEventEnd - p.domContentLoadedEventStart));
    console.log("DOM complete = " + p.domComplete);
    console.log("DOM interactive = " + p.interactive);
 
    // document load and unload time
    console.log("document load = " + (p.loadEventEnd - p.loadEventStart));
    console.log("document unload = " + (p.unloadEventEnd - p.unloadEventStart));
    
    // other properties
    console.log("type = " + p.type);
    console.log("redirectCount = " + p.redirectCount);
  }
}

Specifications

Specification Status Comment
Navigation Timing Level 2
The definition of 'type' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 57Edge Full support 12Firefox Full support 58IE No support NoOpera Full support 44Safari No support NoWebView Android Full support 57Chrome Android Full support 57Edge Mobile Full support YesFirefox Android Full support 58Opera Android Full support 44Safari iOS No support NoSamsung Internet Android Full support 7.0

Legend

Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills, jpmedley, abbycar, rolfedh, AFBarstow
Last updated by: fscholz,