The connectEnd
read-only property returns the timestamp
immediately after the browser finishes establishing the connection to the server to retrieve the resource. The timestamp value includes the time interval to establish the transport connection, as well as other time intervals such as SSL handshake and SOCKS authentication.
Note: This feature is available in Web Workers.
Syntax
resource.connectEnd;
Return value
A DOMHighResTimeStamp
representing the time after a connection is established.
Example
In the following example, the value of the *Start
and *End
properties of all "resource
" type
events are logged.
function print_PerformanceEntries() {
// Use getEntriesByType() to just get the "resource" events
var p = performance.getEntriesByType("resource");
for (var i=0; i < p.length; i++) {
print_start_and_end_properties(p[i]);
}
}
function print_start_and_end_properties(perfEntry) {
// Print timestamps of the *start and *end properties
properties = ["connectStart", "connectEnd",
"domainLookupStart", "domainLookupEnd",
"fetchStart",
"redirectStart", "redirectEnd",
"requestStart",
"responseStart", "responseEnd",
"secureConnectionStart"];
for (var i=0; i < properties.length; i++) {
// check each property
var supported = properties[i] in perfEntry;
if (supported) {
var value = perfEntry[properties[i]];
console.log("... " + properties[i] + " = " + value);
} else {
console.log("... " + properties[i] + " = NOT supported");
}
}
}
Specifications
Specification | Status | Comment |
Resource Timing Level 1The definition of 'connectEnd' in that specification. | Candidate Recommendation | Initial definition. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
connectEnd
|
Chrome
Full support 43 |
Edge
Full support 12 |
Firefox
Full support 40 |
IE
Full support 10 |
Opera
Full support 32 |
Safari
Full support 11 |
WebView Android
Full support 43 |
Chrome Android
Full support 43 |
Firefox Android
Full support 42 |
Opera Android
Full support 32 |
Safari iOS
Full support 11 |
Samsung Internet Android
Full support 4.0 |
Legend
- Full support
- Full support
PerformanceResourceTiming.connectEnd by Mozilla Contributors is licensed under CC-BY-SA 2.5.