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- function klona(x) {
- if (typeof x !== 'object') return x;
- var k, tmp, str=Object.prototype.toString.call(x);
- if (str === '[object Object]') {
- if (x.constructor !== Object && typeof x.constructor === 'function') {
- tmp = new x.constructor();
- for (k in x) {
- if (x.hasOwnProperty(k) && tmp[k] !== x[k]) {
- tmp[k] = klona(x[k]);
- }
- }
- } else {
- tmp = {}; // null
- for (k in x) {
- if (k === '__proto__') {
- Object.defineProperty(tmp, k, {
- value: klona(x[k]),
- configurable: true,
- enumerable: true,
- writable: true,
- });
- } else {
- tmp[k] = klona(x[k]);
- }
- }
- }
- return tmp;
- }
- if (str === '[object Array]') {
- k = x.length;
- for (tmp=Array(k); k--;) {
- tmp[k] = klona(x[k]);
- }
- return tmp;
- }
- if (str === '[object Date]') {
- return new Date(+x);
- }
- if (str === '[object RegExp]') {
- tmp = new RegExp(x.source, x.flags);
- tmp.lastIndex = x.lastIndex;
- return tmp;
- }
- return x;
- }
- exports.klona = klona;
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