@uifabric/utilities/lib-amd/getPropsWithDefaults.js

Fluent UI React utilities for building components.

define(["require", "exports", "tslib"], function (require, exports, tslib_1) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    /**
     * Function to apply default values to a component props object. This function is intended for function components,
     * to maintain parity with the `defaultProps` feature of class components. It accounts for properties that are
     * specified, but undefined.
     * @param defaultProps- An object with default values for various properties
     * @param propsWithoutDefaults- The props object passed into the component
     */
    function getPropsWithDefaults(defaultProps, propsWithoutDefaults) {
        var props = tslib_1.__assign({}, propsWithoutDefaults);
        for (var _i = 0, _a = Object.keys(defaultProps); _i < _a.length; _i++) {
            var key = _a[_i];
            if (props[key] === undefined) {
                props[key] = defaultProps[key];
            }
        }
        return props;
    }
    exports.getPropsWithDefaults = getPropsWithDefaults;
});
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