Web workers and Multi Threading in JS. How are Web Workers different from Promises?
Web workers bring the multi threading ability to Javascript. Multihtreading is the ability to conjure up different processes ( ie threads ) and run different code bases.
Web Workers are not same as Promises. A Promise code runs in a an asynchronous way..ie Javascript engine will put the code in a promise in a "deferred bag"..whenever there is some free time availble to engine it will start executing the code. The code still runs on the same thread which a users uses to click a button or select some text. If the promise code is long ( or crappy) it will hang the user experience.
This is not the case with Web Workers, as the code is running in a completely different process
#funcWithJS #react #javascript #multiThreading #webWorkers