How to use javascript libraries that require binding to DOM nodes - ag-grid

Question

I have been trying to use Ag-Grid with Svelte. I understand that the main problem with using this grid library is that it needs to bind to a dom element that may not exist at the time of the code executing. For example:
// lookup the container we want the Grid to use
var eGridDiv = document.querySelector('#myGrid');
In this case, the #myGrid element does not exist yet.
I have tried creating an element and then placing it on the HTML part of the Svelte component, like this.
let eGridDiv = document.createElement("DIV");
let gridOptions = { columnDefs: columnDefs, rowData: $orders };
new Grid(eGridDiv, gridOptions);
And then down on the HTML section
<eGridDiv />
However, the new element does not seem to be initialized by Ag-Grid.
So what is the recommended way to use these types of libraries in Svelte?

Answer 1

If you want to use a DOM node in the script part of your component you can use the bind:this={domNode} element binding to get a reference to it, and then use it after the component has been rendered in onMount.
<script>
import { onMount } from 'svelte';
let domNode;
// ...
onMount(() => {
const gridOptions = { columnDefs: columnDefs, rowData: $orders };
new Grid(domNode, gridOptions);
});
</script>
<div bind:this={domNode} />