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iamvictorli
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simple data selections with bar graph
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<!DOCTYPE html> <head> <meta charset="utf-8"> <script src="https://d3js.org/d3.v5.min.js"></script> <style> body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } svg { width: 100%; height: 100%; } </style> </head> <body> <svg> <rect /> <rect /> <rect /> <rect /> <rect /> </svg> <script> var rectWidth = 50; var height = 300; var data = [100, 250, 175, 200, 150]; var graph = d3.selectAll('rect') .data(data) .attr('x', (d, i) => i * rectWidth) .attr('y', d => height - d) .attr('width', rectWidth) .attr('height', d => d) .attr('fill', d => d === 200 ? 'red' : 'blue') .attr('stroke', '#fff'); console.log(graph.node()); console.log(graph.nodes()); console.log(graph.data()); </script> </body>
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