Fix rending of group role. Add unit test and demo#98

Merged

tangbc merged 6 commits intotangbc:masterfrom

Apr 19, 2019

Commits on Apr 17, 2019

correct render function to add role attribute
mash19
committed

Commits on Apr 19, 2019

Update setsize source in test
mash19
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fix lint errors
mash19
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Merge pull request #1 from tangbc/master
Mash19
authored
Corrected listitem role.
mash19
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Merge branch 'master' of https://github.com/Mash19/vue-virtual-scroll-list
mash19
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