3.4 data binding

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/*Defining text stylings*/

#h1 {
  font-size:30px;
  margin:30px 0px 0px 20px;
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  font-weight:300;
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	margin:5px 0px 0px 22px;
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/*Defining chart stylings*/

rect{
  fill:#85f6fa;
  opacity:0.5;
}

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<body>
  

<p id="h1">DATA BINDING</p>
<div id="link">by
<a href="https://slides.com/sandravizmad">SANDRA</a></div>  
  
<script>

//Margin conventions
var m = {top:100, right:50, bottom:50, left:40}
    w = 700 - m.left - m.right,
    h = 700 - m.top - m.bottom;

//Container
var svg = d3.select("body")
	  .append("svg")
    .attr("width", w + m.left + m.right)
    .attr("height", h + m.top + m.bottom)
    .append("g")
		.attr("transform", `translate(${m.left}, ${m.top})`);

//Dataset
var data = [0.1, 1.5, 2.5, 3.5, 4.5];

//Draw the rects
svg.selectAll("rect")
    .data(data)
    .enter()
    .append("rect")
    .attr("x", d => d*100)
    .attr("y", 50)
    .attr("width", 50)
    .attr("height", 450);

</script>
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