Use B instead of G?

[curran]

One of the most common pieces of feedback I get from clients for visualizations that use the SI format is "What does G mean?" and "Why doesn't is use B for Billions?".

It's easy enough to do string replacement with something like this:

const yAxisTickFormat = number =>
  format('.1s')(number)
    .replace('G', 'B');

However, as I find myself doing this over and over in different projects, I wonder if it might be a sensible thing to build into d3-format. I thought I'd open this issue as a place to discuss ways to approach this.

Anyone else run into this issue?

Related: #71

[mbostock]

Changing this wouldn’t be backwards-compatible, and also muddies the feature definition, which is very clearly defined to used SI prefixes. The way for this feature to proceed is a new format directive (something other than s), which is covered by #71. So I’m closing this as a duplicate, but I’d welcome input on that issue!

[curran]

Thanks!