[7.x] [APM Replace usage of idx with optional chaining (#50849)#50914

Merged

dgieselaar merged 1 commit intoelastic:7.xfrom dgieselaar:backport/7.x/pr-50849

Nov 20, 2019

+166-182

Commits on Nov 20, 2019

[APM Replace usage of idx with optional chaining (elastic#50849 )
dgieselaar
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