Acme.BookStore.HttpApi.Host/node_modules/clone/README.md
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# clone
[](http://travis-ci.org/pvorb/clone) [](http://npm-stat.com/charts.html?package=clone)
offers foolproof _deep cloning_ of objects, arrays, numbers, strings, maps,
sets, promises, etc. in JavaScript.
**XSS vulnerability detected**
## Installation
npm install clone
(It also works with browserify, ender or standalone. You may want to use the
option `noParse` in browserify to reduce the resulting file size, since usually
`Buffer`s are not needed in browsers.)
## Example
~~~ javascript
var clone = require('clone');
var a, b;
a = { foo: { bar: 'baz' } }; // initial value of a
b = clone(a); // clone a -> b
a.foo.bar = 'foo'; // change a
console.log(a); // show a
console.log(b); // show b
~~~
This will print:
~~~ javascript
{ foo: { bar: 'foo' } }
{ foo: { bar: 'baz' } }
~~~
**clone** masters cloning simple objects (even with custom prototype), arrays,
Date objects, and RegExp objects. Everything is cloned recursively, so that you
can clone dates in arrays in objects, for example.
## API
`clone(val, circular, depth)`
* `val` -- the value that you want to clone, any type allowed
* `circular` -- boolean
Call `clone` with `circular` set to `false` if you are certain that `obj`
contains no circular references. This will give better performance if
needed. There is no error if `undefined` or `null` is passed as `obj`.
* `depth` -- depth to which the object is to be cloned (optional,
defaults to infinity)
* `prototype` -- sets the prototype to be used when cloning an object.
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