# REPL help mode: nothing on strings for lastindex

**URL:** <https://discourse.julialang.org/t/repl-help-mode-nothing-on-strings-for-lastindex/21909>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [March 15, 2019, 11:59am UTC](https://discourse.julialang.org/t/repl-help-mode-nothing-on-strings-for-lastindex/21909 "2019-03-15T11:59:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![maxchendt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maxchendt/32/42976_2.png) [@maxchendt](https://discourse.julialang.org/u/maxchendt)\
**Post date:** [March 15, 2019, 11:59am UTC](https://discourse.julialang.org/t/repl-help-mode-nothing-on-strings-for-lastindex/21909/1 "2019-03-15T11:59:44Z")

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`lastindex(str)`: In [Strings · The Julia Language](https://docs.julialang.org/en/v1/manual/strings/index.html), we see

- [`lastindex(str)`](https://docs.julialang.org/en/v1/base/collections/#Base.lastindex) gives the maximal (byte) index that can be used to index into `str` .

In REPL help mode: `?lastindex` , nothing on strings, only text as seen in [Collections and Data Structures · The Julia Language](https://docs.julialang.org/en/v1/base/collections/#Base.lastindex)

I hope that there is something like:

> ```
> lastindex(str::AbstractString)
> 
> ```
> 
> gives the maximal (byte) index that can be used to index into str.
> 
> # Examples
> 
> ```jldoctest
> julia> lastindex("")
> 0
> 
> julia> lastindex("∀")
> 1
> 
> ```

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<div class="post-metadata">

**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [March 15, 2019, 12:18pm UTC](https://discourse.julialang.org/t/repl-help-mode-nothing-on-strings-for-lastindex/21909/2 "2019-03-15T12:18:48Z")

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Yes, it looks like a docstring would be reasonable for that method, too.

Please open an issue or make a PR.