billboard.js/dist-esm/config/config.js

Re-usable easy interface JavaScript chart library, based on D3 v4+

/*!
* Copyright (c) 2017 ~ present NAVER Corp.
 * billboard.js project is licensed under the MIT license
 * 
 * billboard.js, JavaScript chart library
 * https://naver.github.io/billboard.js/
 * 
 * @version 4.0.1
*/
import { isDefined, isObjectType } from '../module/util/type-checks.js';

/**
 * Load configuration option
 * @param {object} config User's generation config value
 * @private
 */
function loadConfig(config) {
    const thisConfig = this.config;
    let target;
    let keys;
    let read;
    const find = () => {
        const key = keys.shift();
        if (key && target && isObjectType(target) && key in target) {
            target = target[key];
            return find();
        }
        else if (!key) {
            return target;
        }
        return undefined;
    };
    Object.keys(thisConfig).forEach(key => {
        target = config;
        keys = key.split("_");
        read = find();
        if (isDefined(read)) {
            thisConfig[key] = read;
        }
    });
    // only should run in the ChartInternal context
    if (this.api) {
        this.state.orgConfig = config;
    }
}

export { loadConfig };