unit test JS

[richardzcode]

No description provided.

[codecov-io]

Codecov Report

Merging #64 into master will increase coverage by 2.23%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #64      +/-   ##
==========================================
+ Coverage   71.03%   73.26%   +2.23%     
==========================================
  Files          49       49              
  Lines        2213     2162      -51     
  Branches      464      438      -26     
==========================================
+ Hits         1572     1584      +12     
+ Misses        565      502      -63     
  Partials       76       76

Impacted Files	Coverage Δ
packages/aws-amplify/src/Common/JS.ts	100% <100%> (+73.25%)	⬆️

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[powerful23]

+1

[github-actions]

This pull request has been automatically locked since there hasn't been any recent activity after it was closed. Please open a new issue for related bugs.

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