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Master Web Workers

JavaScript threads often get blocked for a long time, causing the page to lag, which affects user experience. To solve this problem of single-threading, Web Workers were introduced.

Biao Zhu
4 min readApr 3, 2024

Hello everyone, I’m Biao, a Javascript front-end engineer. Today, I’d like to share with you the web worker. Hoping you’ll find them enjoyable.

Everyone knows that JavaScript was first made to run in web browsers. To stop problems with many things happening at once and messing up how the page looks, JavaScript was made to only do one thing at a time. If one thing isn’t finished, the next thing has to wait.

Web Workers let JavaScript do more than one thing at a time. They let the main part of JavaScript make other parts to help. These helpers, called Worker threads, can keep working even if the main part is busy with things like buttons or forms. This helps them talk with the main part whenever they need to. But Workers need lots of computer power, so they shouldn’t be used too much. And when they’re done, they should be stopped.

This helps a lot because hard or slow jobs can be done by Workers, so the main part (which usually takes care of how things look) stays smooth and doesn’t slow down.

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Biao Zhu
Biao Zhu

Written by Biao Zhu

Life Sharing | Front-end Developer

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