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Tag: performance

How to use the `PerformanceNavigationTiming` API to get page load time?

I am trying to to use the PerformanceNavigationTiming API to generate a page load metric. The MDN API document linked above says that the PerformanceEntry.duration should give me what I need because it: [r]eturns a timestamp that is the difference between the PerformanceNavigationTiming.loadEventEnd and PerformanceEntry.startTime properties. However, when I check this property, I get simply 0. I’m accessing this API

JS How can I increase the performance of this Max/Min coding challenge?

I’m trying to solve some ‘hackerrank.com’ coding challenges. I’m stuck on this one: You will be given an array of integers arr and a single integer k. You must create an array arr’ of length k from elements of arr such that its unfairness is minimized. Unfairness is defined as max(arr’) – min(arr’) The function should return the minimum possible

How Can I integrate my Login Component in Navbar?(Code Attached)

I am a new programmer and I recently started following a music-player tutorial, and am experiencing a couple of issues with it. Project Overview: What I Have So Far: As previously described, it is a music-player project made with create-react-app. It has 4 playlists, persian, rock, turkish, and house, whom all have their separate route-able .js page. The app is structured

Why is the split() method approx. 2x slower when the result is pushed to an array?

Consider the following code snippet: The output of this code is something like: Time needed: 2664ms. However, with the line // result.push(words); uncommented, the output is something like: Time needed: 4991ms. That’s approx. 2x slower (note that I’m measuring only the time needed by split(), but not push()). Can someone explain me why? Answer performance.now() does not have the necessary

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