mstf-kit/dist/esm/utils/object.js

一个现代化的 JavaScript/TypeScript 工具库，提供了丰富的常用工具函数

function deepClone(obj) {
  if (obj === null || typeof obj !== "object") {
    return obj;
  }
  if (obj instanceof Date) {
    return new Date(obj.getTime());
  }
  if (obj instanceof RegExp) {
    return new RegExp(obj);
  }
  if (Array.isArray(obj)) {
    return obj.map((item) => deepClone(item));
  }
  const cloned = {};
  Object.keys(obj).forEach((key) => {
    cloned[key] = deepClone(obj[key]);
  });
  return cloned;
}
function get(obj, path, defaultValue) {
  const keys = Array.isArray(path) ? path : path.split(".");
  let result = obj;
  for (const key of keys) {
    if (result === void 0 || result === null) {
      return defaultValue;
    }
    result = result[key];
  }
  return result === void 0 ? defaultValue : result;
}
function set(obj, path, value) {
  const keys = Array.isArray(path) ? path : path.split(".");
  const lastKey = keys.pop();
  let current = obj;
  for (const key of keys) {
    if (!(key in current)) {
      current[key] = {};
    }
    current = current[key];
  }
  current[lastKey] = value;
}
function pick(obj, keys) {
  return keys.reduce((result, key) => {
    if (key in obj) {
      result[key] = obj[key];
    }
    return result;
  }, {});
}
function omit(obj, keys) {
  const result = { ...obj };
  keys.forEach((key) => delete result[key]);
  return result;
}
function merge(...objects) {
  const isObject = (item) => item !== null && typeof item === "object" && !Array.isArray(item);
  const result = {};
  for (const obj of objects) {
    for (const key in obj) {
      const value = obj[key];
      if (isObject(value)) {
        if (isObject(result[key])) {
          result[key] = merge(result[key], value);
        } else {
          result[key] = deepClone(value);
        }
      } else if (value !== void 0) {
        result[key] = deepClone(value);
      }
    }
  }
  return result;
}
export {
  deepClone,
  get,
  merge,
  omit,
  pick,
  set
};