PerformanceNavigationTiming.type
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The type
read-only property returns the type of navigation.
Value
A string
containing one of the following values:
-
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.
Examples
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 |
---|
Navigation Timing Level 2 # dom-performancenavigationtiming-type |
Browser compatibility
BCD tables only load in the browser