Docs: what does g modifier exactly do?

[afanasy]

It's not clear from the docs, why

d3.format('')(127) //gives 127
d3.format('g')(127) //gives 127.000

?

[mbostock]

Drawing from the README:

The type​ (none) is also supported as shorthand for ~g (with a default precision of 12 instead of 6)

And:

The ~ option trims insignificant trailing zeros across all format types.

The trailing zeros are therefore stripped with (none), but not g.

[afanasy]

Thanks @mbostock! I was coming from the previous 1.2 version and missed the newly added ~ option.