# Need help with Reactive possible bug?

**URL:** <https://discourse.julialang.org/t/need-help-with-reactive-possible-bug/1722>\
**Category:** General Usage\
**Tags:** question, package\
**Created:** [January 27, 2017, 6:47pm UTC](https://discourse.julialang.org/t/need-help-with-reactive-possible-bug/1722 "2017-01-27T18:47:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![TsurHerman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tsurherman/32/1234_2.png) [@TsurHerman](https://discourse.julialang.org/u/TsurHerman)\
**Post date:** [January 27, 2017, 6:47pm UTC](https://discourse.julialang.org/t/need-help-with-reactive-possible-bug/1722/1 "2017-01-27T18:47:35Z")

</div>

In a project I am working on, I have a situation where the logic is very elegantly expressed  
using Reactive programming… Basically I have a signal that I need to respond to , that signal undergoes 3 different  
transformations to produce 3 child signals a,b,c ,these in turn get propagated to be further transformed ad comsumed in a different part of the program.  
I have another signal d  
that I am binding it to signal a , but upon user input I may want to change the binding to b or c.

Reading through the docs , this seems straight fwd using the bind! unbind! methods… but it seems that unbind! doesn’t work!! or I am doing something wrong…

```julia

julia> using Reactive

julia> x=Signal(0)
Signal{Int64}(0, nactions=0)

julia> y = Signal(1)
Signal{Int64}(1, nactions=0)

julia> bind!(y,x,false)

julia> push!(x,10)

julia> value(y)
10

julia> unbind!(y,x,true)

julia> push!(x,1000)

julia> value(y)
1000

julia>

```

As you can see from the example the value of y changed even though it was un-binded.

Edit:  
I posted an issue in the github of the package, but there seems to be very little activity there…  
I was under the impression that Reactive is an important package in julian space … I tried figuring it out on my own  
so far with little success…any help from you wizards will be greatly appreciated

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<div class="post-metadata">

**Author:** ![tshort](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tshort/32/43_2.png) [@tshort](https://discourse.julialang.org/u/tshort)\
**Post date:** [January 28, 2017, 7:28pm UTC](https://discourse.julialang.org/t/need-help-with-reactive-possible-bug/1722/2 "2017-01-28T19:28:26Z")

</div>

Looks like you found the problem. Awesome!

[https://github.com/JuliaGizmos/Reactive.jl/pull/120](https://github.com/JuliaGizmos/Reactive.jl/pull/120)