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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 compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 57 12 58 No 44 No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 57 57 Yes 58 44 No 7.0

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/type