vtils/validator/yupSource/util/prependDeep.js

一个面向业务的 JavaScript/TypeScript 实用程序库。

import { has } from "../../../utils/index.js";
import isSchema from "./isSchema.js";
var isObject = function isObject(obj) {
  return Object.prototype.toString.call(obj) === '[object Object]';
};
export default function prependDeep(target, source) {
  for (var key in source) if (has(source, key)) {
    var sourceVal = source[key],
      targetVal = target[key];
    if (targetVal === undefined) {
      target[key] = sourceVal;
    } else if (targetVal === sourceVal) {
      continue;
    } else if (isSchema(targetVal)) {
      if (isSchema(sourceVal)) target[key] = sourceVal.concat(targetVal);
    } else if (isObject(targetVal)) {
      if (isObject(sourceVal)) target[key] = prependDeep(targetVal, sourceVal);
    } else if (Array.isArray(targetVal)) {
      if (Array.isArray(sourceVal)) target[key] = sourceVal.concat(targetVal);
    }
  }
  return target;
}