refactor: Use arrow functions when calling Array.prototype.filter
#8557
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The basics
The details
Proposed Changes
Use arrow functions when calling
Array.prototype.filter, and make a few other other related changes.Reason for Changes
Conciseness and readability.
Test Coverage
Passes
npm test.Additional Information
I did not refactor one example in
generators/javascript/math.ts(and associated test) as we want to maintain ES5.1 compatibility there.