Can you tell the response time of an AJAX request with jQuery?

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I wanted to know if there is a function that returns the AJAX request time in microseconds, because I need to get this value for the project I am developing.

jquery ajax

  • Do you need to do this via code? Because browser developer tools show the time.

  • That’s right, I’ll use the code.

1 answer

2


You need to save a timestamp from the time of the request, get another at the time of the reply, and compare the two:

var inicio = performance.now();
$.get('https://httpbin.org/get').done( function(response) {
    var tempo = performance.now() - inicio;
    console.log('A requisição levou ' + tempo + 'ms');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

The time is in milliseconds, but note that it has decimal places. This is only possible with performance.now(), unsupported in old browsers instead of Date.getTime(), that has no support problems.

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