refactor: replace deprecated String.prototype.substr()
#646
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The kind of change this PR does introduce
Current behaviour
Deprecated
String.prototype.substr()
is used.New behaviour
String.prototype.slice()
is used instead.Other information (e.g. related issues)
Apart from changing all
String.prototype.substr()
toString.prototype.slice()
, also changedString.prototype.substring()
toString.prototype.slice()
for consistency so there are no two different functions that are doing the essentially the same thing.In addition, removed
// eslint-disable-line node/no-deprecated-api
as it is redundant following PR #565.