Public
Edited
Apr 25, 2023
Insert cell
Insert cell
engraftHostObservable = import(await FileAttachment("engraft-host-observable@14.js").url())
Insert cell
Insert cell
React = engraftHostObservable.React
Insert cell
ReactDOM = engraftHostObservable.ReactDOM
Insert cell
import {render, jsx, useObservableValue } with {React, ReactDOM}from'@joshuahhh/react'
Insert cell
Insert cell
EngraftComponent = ({ key, inputs, __element, programString, hide}) => {
const [outputState, setOutputState] = React.useState(null);
const [outputP, setOutputP] = React.useState(null);
const order = useOrder(__element)

const valueP = React.useMemo(() => {
if (!outputP) {
// Hangs
// return new Promise(() => {});
return undefined;
}
return outputP
.then(output => output.value)
.catch(() => {
// For some reason we're having trouble recovering from errors.
// So just use unresolved promises.
// return new Promise(() => {});
// That doesn't work. Just use undefined.
// (See https://github.com/observablehq/feedback/issues/569)
return undefined;
});
}, [outputP]);

useObservableValue(__element, valueP);

return jsx`
<${engraftHostObservable.ObservableExtEmbed}
reportOutputState=${setOutputState}
reportOutputP=${setOutputP}
inputs=${inputs}
programString=${programString}
hide=${hide}
/>
<div style=${{height: 10}}/>
<div>${order}</div>
`;
}
Insert cell
engraft = function (key, inputs, self, programString, hide = false) {
return render(EngraftComponent, {key, inputs, programString, hide}, self);
}
Insert cell
Insert cell
viewof number = Inputs.range([0, 10], {label: "Amount", step: 1})
Insert cell
viewof numberSquared = engraft('numberSquared', {a:number}, this, {"toolName":"slot","modeName":"tool","subProgram":{"toolName":"notebook","cells":[{"var_":{"id":"IDturtle565316","label":"A"},"program":{"toolName":"slot","modeName":"code","code":"IDa000000","defaultCode":"","subPrograms":{}}},{"var_":{"id":"IDcough663826","label":"B"},"program":{"toolName":"slot","modeName":"code","code":"IDmice742767**2","defaultCode":"IDmice742767","subPrograms":{}}},{"var_":{"id":"IDclose000286","label":"C"},"program":{"toolName":"slot","modeName":"tool","subProgram":{"toolName":"map","inputProgram":{"toolName":"slot","modeName":"code","code":"[\"hi\", IDturtle565316, IDcough663826]","defaultCode":"IDmice742767","subPrograms":{}},"itemVar":{"id":"IDlyre949404","label":"item"},"perItemProgram":{"toolName":"slot","modeName":"code","code":"IDlyre949404","defaultCode":"IDlyre949404","subPrograms":{}}},"defaultCode":"IDmice742767"}}],"prevVarId":"IDmice742767"},"defaultCode":""},false)
Insert cell
numberCubed = numberSquared * number
Insert cell
import {makeUseOrder} from "160a5b92d40690a2"
Insert cell
useOrder = makeUseOrder(React)
Insert cell

One platform to build and deploy the best data apps

Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.
Learn more