Function loadGraph

openlibrary/plugins/openlibrary/js/graphs/plot.js:249–275

(id, options = {}, tooltip_message = '', color = null)

 *  Ignored if options and no tooltip_message is passed.
 */
export function loadGraph(id, options = {}, tooltip_message = '', color = null) {
    let data;
    const node = document.getElementById(id);
    const graphSelector = `graph-json-${id}`;
    const dataSource = document.getElementById(graphSelector);
    if (!node) {
        throw new Error(
            `No graph associated with ${id} on the page.`
        );
    }
    if (!dataSource) {
        throw new Error(
            `No data associated with ${id} - make sure a script tag with type text/json and id "${graphSelector}" is present on the page.`
        );
    } else {
        try {
            data = JSON.parse(dataSource.textContent);
        } catch (e) {
            throw new Error(`Unable to parse JSON in ${graphSelector}`);
        }
        if (tooltip_message) {
            return plot_tooltip_graph($(node), data, tooltip_message, color);
        } else {
            return $.plot($(node), [{data: data}], options);
        }
    }
}

/**
 * Render a graph inside an element which has the id attribute.