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core-js vs Prototype: who uses which

core-js is on more sites: 2,697,064 against 134,096 for Prototype, about 20.1 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-jsPrototype
.com on .com1,737,56427,681
.org on .org168,3332,351
.de in Germany66,75158,732
.uk in the UK119,6221,038
.net on .net65,3923,380
.au in Australia50,707285
.ch in Switzerland42,0496,524
.ca in Canada45,709332

2 sites run both at once.

Questions

Which is more popular, core-js or Prototype?

core-js is on more sites: 2,697,064 against 134,096 for Prototype, about 20.1 times as many, across the sites StackGrep has indexed.

Do sites use core-js and Prototype together?

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

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