Technobezz

HTML5 Cross-Browser Polyfills 101

The web is evolving quite quickly nowadays. Every day you see new languages, frameworks and tools. However, the developers have to move just as quickly as their slowest user. Let’s dive into the world of the newest changes and developments in the tech industry!

What Are Polyfills?

The polyfill is a replica of a native API that uses non-native code. Briefly put, they patch up older browsers with the missing features we need today. If the feature is already present in the browser, then the polyfill lets it do its job. If not, it steps in and plugs the missing item.

What Kind of Features Does It Replace?

Back in 2009, we saw the release of the ECMAScript. This was a huge step forward for developing language. In 2015, again we saw a huge update for this language. Features keep coming to this format, and it’s hard to keep up with all the browsers. It’s enough to have a look at the latest release for Chrome and compare it to Internet Explorer 9. You will see that there are lots of features missing from the IE, and it supports no ES6 features.

Polyfills or Transpiling

If you have a look at the features supported by the browsers, you will see that you have to transpile your code. From the new syntax, you will obtain some classic ECMAScript 5. If you want to use rest and spread parameterse, async/await, classes, arrow functions and other things, you have to transpile the ES6 code into ES5. Thankfully, there is a tool for that called Babel.

Conclusion

Now you’ve seen what polyfills are and how useful they prove to be if you’re using an older browser version. They are indeed a remarkable advancement of technology and many people truly appreciate them.

More on this topic

Top Best Juicers in 2020

Juicing, undoubtedly, is one of the finest habits to inculcate in your lifestyle. A healthy glass of juice is jam-packed with essential vitamins and minerals that rejuvenate your body and

Best Rice Cooker To Buy In 2020

A rice cooker is the best possible way to cook and enjoy freshly prepared aromatic rice.  The appliance is ideal to avoid any cooking hazards that may occur in the

Best smoothie makers under $100 of 2020

People love smoothies especially when it’s summer and the scorching sun makes them as thirsty as ever. Sipping a healthy smoothie, relaxing in the warm evening sun and reading a

Best Cheap Monitors In 2020

Building your own PC is such a fun and informative experience where you get to know a lot of things about the different parts of a Personal Computer. While hardcore

Best Chromebooks For Students In 2020

Google Chromebooks are an innovation that revolutionized laptops and made them simpler, cheaper and most importantly, a convenient choice for students. Chromebooks may look simple on the outside but there are

Leave a Reply