enable using all features of array types

[PatrickVienne]

@MetalBlueberry

as requested, separated out in a separate PR the change to enable array types as in JS

[PatrickVienne]

Enable using array types:

examples/scatter/scatter.html

[PatrickVienne]

@MetalBlueberry ready for review

[MetalBlueberry]

I see the problem here, but I think we can find a better solution than just using interface everywhere.

here is one proposal I just came up with. but it looks promissing.

• https://github.com/MetalBlueberry/go-plotly/pull/24

We can provably predefine most of the types.

OR would it work with generics? maybe a generic function will solve our problems :blush:

[PatrickVienne]

@MetalBlueberry thanks for checking it and your suggestions. Not sure how generics could help here unfortunately since we can have valuetype (string, int, float), we can have arrays ([]string, []int, []float) and then the pointers as well, which we need to represent nil

So it's almost like we need something like

type ArrayElement struct {
    IsValid bool  // if false -> value is marshalled as 'nil'
    Text     string
    Num    float64
}

// type to use for arrayOK types
type Array []ArrayElement

I'm not convinced yet of this solution as well though.

[MetalBlueberry]

This has been merged already, Thank you :heart: