What’s the fastest way to square a number in JavaScript?

Note: Questions like this change over time as browser engines change how their optimizations work. For a recent look comparing: See this revised performance test and run it in the browsers you care about: https://jsperf.com/math-pow-vs-simple-multiplication/32. As of April 2020, Chrome, Edge and Firefox show less than 1% difference between all three of the above methods. If the … Read more

Call python function from JS

Apart from the mentioned points and assuming you already have a proper setup to serve your python script and return the response. You should submit an asynchronous request, especially if the python code does some heavy computation. If you only do some light computation and you have no problem working with a code deprecated as … Read more

react router v^4.0.0 Uncaught TypeError: Cannot read property ‘location’ of undefined

You’re doing a few things wrong. First, browserHistory isn’t a thing in V4, so you can remove that. Second, you’re importing everything from react-router, it should be react-router-dom. Third, react-router-dom doesn’t export a Router, instead, it exports a BrowserRouter so you need to import { BrowserRouter as Router } from ‘react-router-dom. Looks like you just … Read more