All files index.js

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import { type } from './type.js';
 
export function clone(source) {
  const t = type(source);
  if (t !== 'object' && t !== 'array') {
    return source;
  }
 
  let target;
 
  if (t === 'object') {
    target = {};
    for (let i in source) {
      Eif (source.hasOwnProperty(i)) {
        target[i] = clone(source[i]); // 注意这里
      }
    }
  } else {
    target = [];
    for (let i = 0; i < source.length; i++) {
      target[i] = clone(source[i]); // 注意这里
    }
  }
 
  return target;
}