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aitee/.block

Last active August 28, 2019 22:29
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Inserting @ 0 causes issues with join-update
Raw
.block
license: mit
Raw
index.html
<!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; }
</style>
</head>
<body>
<script>
var width = 900;
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", 33)
.attr("viewBox", `0 -20 ${width} 33`);
function update(data){
svg.selectAll("text")
.data(data)
.join(
onCreate => onCreate.append("text") // enter
// Can't solely put it here as text needs to be on update as well
// (otherwise the values aren't updated and assumes the values in those positions are unchanged.)
//.text(d => d)
.attr("fill", "green"),
onUpdate => onUpdate // update
.attr("fill", "black"),
onRemove => onRemove.remove() // exit
)
// We can put things common to enter and update.
.text(d => d)
.attr("font-size", "24")
.attr("font-weight", "bold")
.attr("x", (d, i) => i * 50);
}
update(["1", "2", "3"]); // Expect, all green
update(["-1", "0", "1", "2", "3"]); // Expect 0, 1 green followed by 1, 2, 3 black.
</script>
</body>
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