eslint-no-var

[msimerson]

• extend lint tests to readers/*.js
• add a few more tests

[codecov]

Codecov Report

Merging #29 into master will increase coverage by 0.19%.
The diff coverage is 92.42%.

@@            Coverage Diff             @@
##           master      #29      +/-   ##
==========================================
+ Coverage   80.53%   80.73%   +0.19%     
==========================================
  Files           7        7              
  Lines         411      410       -1     
  Branches      118      118              
==========================================
  Hits          331      331              
+ Misses         80       79       -1

Impacted Files	Coverage Δ
readers/json.js	100% <100%> (ø)	⬆️
readers/yaml.js	100% <100%> (ø)	⬆️
readers/binary.js	100% <100%> (ø)	⬆️
readers/flat.js	80% <75%> (-0.49%)	⬇️
readers/ini.js	97.22% <95.83%> (+1.38%)	⬆️

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