externs.js

d3 = {version: "1.27.1"};
d3.select = function(selector) {};
d3.max = function(array, f) {};
d3.min = function(array, f) {};
d3.sum = function(array, f) {};
d3.interpolate = function(a, b) {};

d3.scale = {};
d3.scale.linear = function() {};
  scale.domain = function(x) {};
  scale.range = function(x) {};
  scale.rangeRound = function(x) {};
  scale.interpolate = function(x) {};
  scale.ticks = function(m) {};
 d3.selectAll = function(selector) {};
 groups.select = function(selector) {};
 groups.selectAll = function(selector) {};
 groups.each = function(callback) {};
 groups.data = function(data, join) {};
 groups.on = function(type, listener, capture) {};
 groups.style = function(name, value, priority) {};
 groups.attr = function(name, value) {};
 groups.each = function(callback) {};
 groups.text = function(value) {};
 groups.append = function(name) {};
 groups.insert = function(name, before) {};
 groups.remove = function() {};
 groups.transition = function() {};

selection.enter = function() {};
selection.exit = function() {};
groups.append = function(name) {};
transition.styleTween = function(name, tween, priority) {};
transition.attr = function(name, value) {};
transition.style = function(name, value, priority) {};
transition.text = function(value) {};
transition.select = function(query) {};
transition.selectAll = function(query) {};
transition.attrTween = function(name, tween) {};
transition.ease = function(value) {};
transition.duration = function(value) {};
transition.delay = function(value) {};
transition.remove = function() {};
transition.each = function(type, listener) {};

d3.svg = {};
d3.svg.arc = function() {};
arc.innerRadius = function(v) {};
arc.outerRadius = function(v) {};
arc.startAngle = function(v) {};
arc.endAngle = function(v) {};
arc.centroid = function() {};

d3.layout = {};
d3.layout.pie = function() {};
pie.value = function(x) {};
pie.sort = function(x) {};
pie.startAngle = function(x) {};
pie.endAngle = function(x) {};

d3.svg.line = function() {};
line.x = function(v) {};
line.y = function(v) {};
line.interpolate = function(v) {};
line.tension = function(v) {};

d3.svg.area = function() {};
area.x = function(x) {};
area.x0 = function(x) {};
area.x1 = function(x) {};
area.y = function(y) {};
area.y0 = function(y) {};
area.y1 = function(y) {};
area.interpolate = function(x) {};
area.tension = function(x) {};

d3.scale.category10 = function() {};
d3.scale.category20 = function() {};
d3.scale.category20b = function() {};
d3.scale.category20c = function() {};