Ian Lance Taylor talks about adding the append function. When the Go language was first publicly released it contained a package named container/vector. The type vector.Vector was a name for the type []interface{}. Vector supported methods like Len, Cap, At, Set, Insert, Delete, Push, Pop, and several more. You can see the source code at on Github. An interesting aspect of the package is that string and int versions of Vector were automatically generated by copying the file vector.go with edits applied by gofmt -r.
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