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Tip of the Day
Language: Web
Expertise: Intermediate
Oct 17, 2017

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


How to Measure the Performance of a Script in JavaScript

We can now use the Performance API to compute the execution time for a piece of code in JavaScript.

//capture the start time in a variable.
var timeStart = performance.now();
//run a time consuming task.
for (counter = 0; counter     //Do some processing
   var temp = temp + counter * counter;
}
//capture the current time
var timeEnd = performance.now();
//measure the compute time
console.log("Processing time is " + (timeEnd - timeStart) + " milliseconds.")
Srinath M S
 
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