seed, teach, grow
Published
Edited
Apr 10, 2020
1 star
letter_selected = Generators.observe(
// selection_caught will (yield) a value promise with the selected letters
initialize_f
)
function initialize_f(change_) {
// creating an event listener (ie a function to attach to some DOM element)
const signaled = (name, value) => change_(value);
// attaching the event listener and naming it "test_selection"
barChart.addSignalListener("test_selection", signaled);
// check the doc ... https://github.com/observablehq/stdlib
change_(barChart.signal("test_selection"));
function dispose_f() {
return barChart.removeSignalListener("test_selection", signaled);
}
return dispose_f;
}
// a function to reshape the data as the original one
restaured_data = d3
.zip(letter_selected.a, letter_selected.b)
.map(d => ({ a: d[0], b: d[1] }))
viewof linked_chart = vl2({
$schema: "https://vega.github.io/schema/vega-lite/v4.json",
description: "A simple bar chart with embedded data.",
data: { values: restaured_data },
mark: "bar",
encoding: {
x: { field: "a", type: "ordinal", axis: { labelAngle: 0 } },
y: { field: "b", type: "quantitative" }
}
})
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