How do I reference the d3 npm package in Visual Studio 2017 from within my HTML code while using Express?
What I'm trying to do is run a basic HTML page using d3 and express.js. I've already installed the d3 package, but I can't figure out how to use it from within Visual Studio.
screen shot of visual studio 2017
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.bar {
fill: steelblue;
}
</style>
<body>
<!--<script src="//d3js.org/d3.v4.min.js"></script>-->
<script>
var data = [{ "salesperson": "Bob", "sales": 33 }, { "salesperson": "Robin", "sales": 12 }, { "salesperson": "Anne", "sales": 41 }, { "salesperson": "Mark", "sales": 16 }, { "salesperson": "Joe", "sales": 59 }, { "salesperson": "Eve", "sales": 38 }, { "salesperson": "Karen", "sales": 21 }, { "salesperson": "Kirsty", "sales": 25 }, { "salesperson": "Chris", "sales": 30 }, { "salesperson": "Lisa", "sales": 47 }, { "salesperson": "Tom", "sales": 5 }, { "salesperson": "Stacy", "sales": 20 }, { "salesperson": "Charles", "sales": 13 }, { "salesperson": "Mary", "sales": 29 }];
// set the dimensions and margins of the graph
var margin = { top: 20, right: 20, bottom: 30, left: 40 },
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// set the ranges
var y = d3.scaleBand()
.range([height, 0])
.padding(0.1);
var x = d3.scaleLinear()
.range([0, width]);
// append the svg object to the body of the page
// append a 'group' element to 'svg'
// moves the 'group' element to the top left margin
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
// format the data
data.forEach(function (d) {
d.sales = +d.sales;
});
// Scale the range of the data in the domains
x.domain([0, d3.max(data, function (d) { return d.sales; })])
y.domain(data.map(function (d) { return d.salesperson; }));
//y.domain([0, d3.max(data, function(d) { return d.sales; })]);
// append the rectangles for the bar chart
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
//.attr("x", function(d) { return x(d.sales); })
.attr("width", function (d) { return x(d.sales); })
.attr("y", function (d) { return y(d.salesperson); })
.attr("height", y.bandwidth());
// add the x Axis
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
// add the y Axis
svg.append("g")
.call(d3.axisLeft(y));
</script>
</body>
via Meister1867
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