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Home / Technologies / core-js vs Web Components Polyfills

core-js vs Web Components Polyfills: who uses which

core-js is on more sites: 2,697,064 against 44,489 for Web Components Polyfills, about 60.6 times as many. Here's how they compare across the websites we've indexed, and where each one does best.

Where each one is used

Domaincore-jsWeb Components Polyfills
.com on .com1,737,5647,098
.org on .org168,3332,120
.uk in the UK119,622738
.de in Germany66,7519,100
.net on .net65,392514
.au in Australia50,707277
.ca in Canada45,709239
.ch in Switzerland42,0491,235

22 sites run both at once.

Questions

Which is more popular, core-js or Web Components Polyfills?

core-js is on more sites: 2,697,064 against 44,489 for Web Components Polyfills, about 60.6 times as many, across the sites StackGrep has indexed.

Do sites use core-js and Web Components Polyfills together?

22 sites load both. That's often a switch in progress, or two teams picking different tools.

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