I found this link: https://stackoverflow.com/questions/21841295/how-do-you-generate-a-regular-non-integer-sequence-in-julia/21841396, so I was thinking to try it out. And then I was confused.

```
Julia has exited. Press Enter to start a new session.
Starting Julia...
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_) | Documentation: https://docs.julialang.org
_ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
| | | | | | |/ _` | |
| | |_| | | | (_| | | Version 0.7.0 (2018-08-08 06:46 UTC)
_/ |\__'_|_|_|\__'_| | Official http://julialang.org/ release
|__/ | x86_64-pc-linux-gnu
julia> [0.1:0.1:1]
1-element Array{StepRangeLen{Float64,Base.TwicePrecision{Float64},Base.TwicePrecision{Float64}},1}:
0.1:0.1:1.0
```

My question: what is the length of the array

`[0.1:0.1:1]`

in julia ?