JSPM – @butlerov-chemistry/core@0.1.1

Package Exports

@butlerov-chemistry/core
@butlerov-chemistry/core/dist/butlerov.umd.cjs

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@butlerov-chemistry/core) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Butlerov core web component - a control to edit and display chemical structures.

Use in frontend projects

When using in projects built by js package managers like npm / yarn, just install into your project:

npm i butlerov

Then, import

import { MoleculeEditor, MW } from "butlerov";
const editor = MoleculeEditor({stage: document.getElementById("div-chemical")});
editor.onchange = () => {
    const mw = new MW(editor.graph).compute();
    console.log(`Molecular weight: ${MW} Da`);
}

Use in browser

You need to put butlerov.umd.js universal module definition (UMD) file somewhere in your project tree.

<html>
    <head>
        <script type="text/javascript" src="/js/butlerov.umd.js"></script>
        <!-- alternative option: -->
        <!-- <script src="https://unpkg.com/butlerov/dist/butlerov.umd.js"></script> -->
        <script type="text/javascript">
            const editor = window.butlerov.MoleculeEditor({stage: document.getElementById("div-chemical")});
            editor.onchange = () => {
                const mw = new window.butlerov.MW(editor.graph).compute();
                console.log(`Molecular weight: ${MW} Da`);
            }
        </script>
    </head>
    <body>
        <p>Now draw some chemistry</p>
        <div style="width: 1000px; height: 600px" id="div-chemical"></div>
    </body>
</html>