Ako získať čas vykonania v JavaScripte

Príklady kódu

5
0

čas počítania JavaScriptu

// The getTime() method returns the number of milliseconds since midnight of January 1, 1970.


var start = new Date().getTime();

for (i = 0; i < 50000; ++i) {
// do something
}

var end = new Date().getTime();
var time = end - start;
alert('Execution time: ' + time);
3
0

čas vykonávania JavaScriptu

var t0 = performance.now();

doSomething();   // <---- The function you're measuring time for 

var t1 = performance.now();
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.");
2
0

získajte čas vykonania v JavaScripte

var t0 = performance.now()

doSomething()   // <---- The function you're measuring time for 

var t1 = performance.now()
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.")

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