@uifabric/styling/lib/utilities/buildClassMap.js

import { mergeStyles } from '../MergeStyles';
/**
 * Builds a class names object from a given map.
 *
 * @param styles - Map of unprocessed styles.
 * @returns Map of property name to class name.
 */
export function buildClassMap(styles) {
    var classes = {};
    var _loop_1 = function (styleName) {
        if (styles.hasOwnProperty(styleName)) {
            var className_1;
            Object.defineProperty(classes, styleName, {
                get: function () {
                    if (className_1 === undefined) {
                        // eslint-disable-next-line @typescript-eslint/no-explicit-any
                        className_1 = mergeStyles(styles[styleName]).toString();
                    }
                    return className_1;
                },
                enumerable: true,
                configurable: true,
            });
        }
    };
    for (var styleName in styles) {
        _loop_1(styleName);
    }
    return classes;
}
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