tools-for-js/lib/utils/object.js

基于babel构建的JavaScript前端工具库

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getValByKey = void 0;
exports.isJsonString = isJsonString;
exports.jsonParse = jsonParse;
exports.objectToQs = void 0;
/*******
 * @description: 将对象转换为查询字符串
 * @author: 琴时
 * @param {*} obj
 * @return {String}
 * @example: objectToQs({a: 1, b: 2}) => 'a=1&b=2'
 */
var objectToQs = exports.objectToQs = function objectToQs(obj) {
  return Object.keys(obj).map(function (key) {
    return "".concat(encodeURIComponent(key), "=").concat(encodeURIComponent(obj[key]));
  }).join('&');
};

/*******
 * @description: 根据key获取对象值
 * @author: 琴时
 * @param {Object} obj
 * @param {String} key
 * @return {*}
 * @example: getValByKey({a: {b: {c: 1}}}, 'a.b.c') => 1
 */
var getValByKey = exports.getValByKey = function getValByKey(obj, key) {
  var keys = key.split('.');
  var value = obj;
  for (var i = 0; i < keys.length; i++) {
    value = value[keys[i]];
  }
  return value;
};

/*******
 * @description: 判断是否为json字符串
 * @author: 琴时
 * @param {String} str
 * @return {Object|Boolean}
 */
function isJsonString(str) {
  try {
    return Boolean(JSON.parse(str));
  } catch (e) {
    return false;
  }
}

/*******
 * @description: 将字符串解析为对象
 * @author: 琴时
 * @param {String} str
 * @return {Object}
 */
function jsonParse(str) {
  try {
    return JSON.parse(str);
  } catch (e) {
    return {};
  }
}