tour: check if file content is set before storing in localStorage file() returns undefined when there is no file to display, like on https://tour.golang.org/welcome/2 Change-Id: Ia26719537949c9909947068d790f07e2eee8f9ff Reviewed-on: https://go-review.googlesource.com/90075 Reviewed-by: Andrew Bonventre <andybons@golang.org>
A Tour of Go is an introduction to the Go programming language.
The easiest way to install the tour locally is to install a binary release of Go and then run:
$ go tool tour
To install the tour from source, first set up a workspace and then run:
$ go get golang.org/x/tour/gotour
This will place a gotour binary in your workspace's bin directory.
Unless otherwise noted, the go-tour source files are distributed under the BSD-style license found in the LICENSE file.
Contributions should follow the same procedure as for the Go project: https://golang.org/doc/contribute.html