Variable used before initialization

[277hz]

d3-zoom/src/zoom.js

Lines 274 to 275 in 84a5e7b

	p = pointer(event, currentTarget),
	currentTarget = event.currentTarget,

While not generally an issue as d3-selection pointer resolves currentTarget by itself, event.currentTarget could technically change in between due to being a getter function.

Respective code was added by Fil/d3-zoom@3156eb0.

[Fil]

leaves me wondering if we should do

p = pointer(event), currentTarget = event.currentTarget,

or

currentTarget = event.currentTarget, p = pointer(event, currentTarget),

[277hz]

@Fil I stumbled upon this while using some older obviously buggy version of Chrome.
Your second suggestion fixed it for me though.