source: trip-planner-front/node_modules/prr/README.md@ 1ad8e64

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1# prr [![Build Status](https://secure.travis-ci.org/rvagg/prr.png)](http://travis-ci.org/rvagg/prr)
2
3An sensible alternative to `Object.defineProperty()`. Available in npm and Ender as **prr**.
4
5## Usage
6
7Set the property `'foo'` (`obj.foo`) to have the value `'bar'` with default options (`'enumerable'`, `'configurable'` and `'writable'` are all `false`):
8
9```js
10prr(obj, 'foo', 'bar')
11```
12
13Adjust the default options:
14
15```js
16prr(obj, 'foo', 'bar', { enumerable: true, writable: true })
17```
18
19Do the same operation for multiple properties:
20
21```js
22prr(obj, { one: 'one', two: 'two' })
23// or with options:
24prr(obj, { one: 'one', two: 'two' }, { enumerable: true, writable: true })
25```
26
27### Simplify!
28
29But obviously, having to write out the full options object makes it nearly as bad as the original `Object.defineProperty()` so we can simplify.
30
31As an alternative method we can use an options string where each character represents a option: `'e'=='enumerable'`, `'c'=='configurable'` and `'w'=='writable'`:
32
33```js
34prr(obj, 'foo', 'bar', 'ew') // enumerable and writable but not configurable
35// muliple properties:
36prr(obj, { one: 'one', two: 'two' }, 'ewc') // configurable too
37```
38
39## Where can I use it?
40
41Anywhere! For pre-ES5 environments *prr* will simply fall-back to an `object[property] = value` so you can get close to what you want.
42
43*prr* is Ender-compatible so you can include it in your Ender build and `$.prr(...)` or `var prr = require('prr'); prr(...)`.
44
45## Licence
46
47prr is Copyright (c) 2013 Rod Vagg [@rvagg](https://twitter.com/rvagg) and licensed under the MIT licence. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE.md file for more details.
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