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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | 2x 48x 48x 48x 64x 64x 6x 42x | /**
* @description 总体的描述
* @function get 根据`object`对象的`path`路径获取值。 如果解析值是`undefined`会以`defaultValue`取代。
* @returns {any} 返回解析的值
* @param {object} object - 要检索的对象
* @param {string} path - 要获取属性的路径
* @param {any} [defaultValue=undefined] - 如果解析值是`undefined`，这值会被返回
* @author liukun <919590347@qq.com>
* @example
* import { get } from '@wont/utils'
* const obj = {
* a: {
* b: [
* {
* c: 'c'
* }
* ]
* },
* d: 'd'
* }
* get(obj, 'a.b') // returns [{c:'c'}]
* get(obj, 'd') // returns 'd'
* get(obj, 'a.b[0].c') // returns 'c'
* get(obj, 'e') // returns undefined
* get(obj, 'a.b[1].c', '默认字符串') // returns '默认字符串'
*/
export const get = (
object: Record<string, unknown>,
path: string,
defaultValue?: unknown,
): unknown => {
// a[3].b -> a.3.b
const paths = path.replace(/\[(\d+)\]/g, '.$1').split('.');
let result = object;
for (const key of paths) {
result = Object(result)[key];
if (result === undefined) {
return defaultValue;
}
}
return result;
};
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