javascript - D3.js circles order -


i have follow json array

{"x" :"7","y" :30,"color" : "green"},{"x" :"8","y" :70, "color" : "purple"},  {"x" :"9","y" :50, "color" : "yellow"},{"x" :"10","y" :60, "color" : "black"}

but when draw circles, d3.js order array "y" parameter

example : correct order should 

    green -> purple -> yellow - black

but d3.js show 

     green -> yellow -> black -> purple

snippet fiddle

d3 displaying circles correctly vertical order based on y value , not on order in array.

you're defining here: 

.attr("cy", function (d) { return d.y; })

if draw circles in indices order 

.attr("cy", function (d, i) { return *10 + 100; })

here have multiplied index constant (10) circles drawn request.

jsfiddle


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