create-gojs-kit
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A CLI for downloading GoJS samples, extensions, and docs
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<h1>Diagrams in Svelte with GoJS</h1>
<p>If you are new to GoJS, it may be helpful to first visit the <a href="../learn/index.html" target="_blank">Getting Started Tutorial</a>.</p>
<p>We maintain SvelteKit apps that use GoJS to demonstrate Diagramming in Svelte, they can be found <a href="../samples/#svelte">here</a>.</p>
<p>Svelte requires almost no special considerations for use with GoJS. In your project, install GoJS via npm or yarn:</p>
<code>npm i gojs</code>
<p>
And you can use it in a Svelte app. GoJS Diagrams require a DIV, so you should initialize them within <code>onMount</code> to ensure the DOM is ready. An
example:
</p>
<pre class="lang-html"><code>
<!-- +page.svelte -->
<script lang="ts">
import * as go from 'gojs';
import { onMount } from 'svelte';
let myDiagram;
onMount(() => {
myDiagram = new go.Diagram('myDiagramID');
// Set up the rest of the diagram:
myDiagram.model = new go.Model([ { key: 'Alpha' } ])
});
</script>
<div id="myDiagramID" style="width: 500px; height: 500px;" ></div>
</code></pre>
<p>Svelte discourages referencing DOM <code>Id</code>s, so you can also reference the DIV directly with Svelte's <code>bind:this</code> attribute:</p>
<pre class="lang-html"><code>
<!-- +page.svelte -->
<script lang="ts">
import * as go from 'gojs';
import { onMount } from 'svelte';
let myDiagram;
let diagramDiv: HTMLDivElement;
onMount(() => {
myDiagram = new go.Diagram(diagramDiv);
// Set up the rest of the diagram:
myDiagram.model = new go.Model([ { key: 'Alpha' } ])
});
</script>
<div bind:this={diagramDiv} style="width: 500px; height: 500px;" ></div>
</code></pre>
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