pathval
Tool for Object value retrieval given a string path for node and the browser.
## What is pathval?
Pathval is a module which you can use to retrieve or set an Object's property for a given `String` path.
## Installation
### Node.js
`pathval` is available on [npm](http://npmjs.org). To install it, type:
$ npm install pathval
### Browsers
You can also use it within the browser; install via npm and use the `pathval.js` file found within the download. For example:
```html
```
## Usage
The primary export of `pathval` is an object which has the following methods:
* `hasProperty(object, name)` - Checks whether an `object` has `name`d property or numeric array index.
* `getPathInfo(object, path)` - Returns an object with info indicating the value of the `parent` of that path, the `name ` of the property we're retrieving and its `value`.
* `getPathValue(object, path)` - Retrieves the value of a property at a given `path` inside an `object`'.
* `setPathValue(object, path, value)` - Sets the `value` of a property at a given `path` inside an `object` and returns the object in which the property has been set.
```js
var pathval = require('pathval');
```
#### .hasProperty(object, name)
```js
var pathval = require('pathval');
var obj = { prop: 'a value' };
pathval.hasProperty(obj, 'prop'); // true
```
#### .getPathInfo(object, path)
```js
var pathval = require('pathval');
var obj = { earth: { country: 'Brazil' } };
pathval.getPathInfo(obj, 'earth.country'); // { parent: { country: 'Brazil' }, name: 'country', value: 'Brazil', exists: true }
```
#### .getPathValue(object, path)
```js
var pathval = require('pathval');
var obj = { earth: { country: 'Brazil' } };
pathval.getPathValue(obj, 'earth.country'); // 'Brazil'
```
#### .setPathValue(object, path, value)
```js
var pathval = require('pathval');
var obj = { earth: { country: 'Brazil' } };
pathval.setPathValue(obj, 'earth.country', 'USA');
obj.earth.country; // 'USA'
```