| Server IP : 85.214.239.14 / Your IP : 18.219.114.108 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /proc/3/task/3/root/proc/3/root/lib/node_modules/pm2/node_modules/fclone/ |
Upload File : |
# FClone
Clone objects by dropping circular references
[](https://travis-ci.org/soyuka/fclone)
This module clones a Javascript object in safe mode (eg: drops circular values) recursively. Circular values are replaced with a string: `'[Circular]'`.
Ideas from [tracker1/safe-clone-deep](https://github.com/tracker1/safe-clone-deep). I improved the workflow a bit by:
- refactoring the code (complete rewrite)
- fixing node 6+
- micro optimizations
- use of `Array.isArray` and `Buffer.isBuffer`
Node 0.10 compatible, distributed files are translated to es2015.
## Installation
```bash
npm install fclone
# or
bower install fclone
```
## Usage
```javascript
const fclone = require('fclone');
let a = {c: 'hello'};
a.b = a;
let o = fclone(a);
console.log(o);
// outputs: { c: 'hello', b: '[Circular]' }
//JSON.stringify is now safe
console.log(JSON.stringify(o));
```
## Benchmarks
Some benchs:
```
fclone x 17,081 ops/sec ±0.71% (79 runs sampled)
fclone + json.stringify x 9,433 ops/sec ±0.91% (81 runs sampled)
util.inspect (outputs a string) x 2,498 ops/sec ±0.77% (90 runs sampled)
jsan x 5,379 ops/sec ±0.82% (91 runs sampled)
circularjson x 4,719 ops/sec ±1.16% (91 runs sampled)
deepcopy x 5,478 ops/sec ±0.77% (86 runs sampled)
json-stringify-safe x 5,828 ops/sec ±1.30% (84 runs sampled)
clone x 8,713 ops/sec ±0.68% (88 runs sampled)
Fastest is util.format (outputs a string)
```