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lazysizes vs SystemJS: who uses which

lazysizes is on more sites: 932,496 against 86,163 for SystemJS, about 10.8 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

DomainlazysizesSystemJS
.com on .com472,70164,381
.de in Germany50,8651,005
.jp in Japan35,838151
.ru on .ru34,04426
.org on .org25,0034,191
.net on .net22,7551,596
.uk in the UK22,2141,552
.au in Australia15,0113,402

32 sites run both at once.

Questions

Which is more popular, lazysizes or SystemJS?

lazysizes is on more sites: 932,496 against 86,163 for SystemJS, about 10.8 times as many, across the sites StackGrep has indexed.

Do sites use lazysizes and SystemJS together?

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

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