refactor: code

[alexander-akait]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

just refactor code

Breaking Changes

No

Additional Info

No

[codecov]

Codecov Report

Merging #576 into master will decrease coverage by 0.17%.
The diff coverage is 94.44%.

@@            Coverage Diff             @@
##           master     #576      +/-   ##
==========================================
- Coverage   89.37%   89.20%   -0.18%     
==========================================
  Files           5        5              
  Lines         499      500       +1     
  Branches      142      143       +1     
==========================================
  Hits          446      446              
- Misses         49       50       +1     
  Partials        4        4              

Impacted Files	Coverage Δ
src/loader.js	90.98% <94.44%> (-0.76%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1ea4b7f...daf0b81. Read the comment docs.