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coverage/ | ||
node_modules/ | ||
lib-cov | ||
*.seed | ||
*.log | ||
*.csv | ||
*.dat | ||
*.out | ||
*.pid | ||
*.gz | ||
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pids | ||
logs | ||
results | ||
build | ||
components | ||
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node_modules | ||
npm-debug.log | ||
*.tmp.js | ||
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coverage/ | ||
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pathval.js |
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keithamus | ||
davelosert | ||
lucasfcosta | ||
meeber | ||
vesln |
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[![NPM version](https://badge.fury.io/js/pathval.png)](http://badge.fury.io/js/pathval) | ||
[![Build Status](https://secure.travis-ci.org/chaijs/pathval.png)](http://travis-ci.org/chaijs/pathval) | ||
[![Code Climate](https://codeclimate.com/github/chaijs/pathval.png)](https://codeclimate.com/github/chaijs/pathval) | ||
<h1 align=center> | ||
<a href="http://chaijs.com" title="Chai Documentation"> | ||
<img alt="ChaiJS" src="http://chaijs.com/img/chai-logo.png"/> pathval | ||
</a> | ||
</h1> | ||
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<p align=center> | ||
Tool for Object value retrieval given a string path for <a href="http://nodejs.org">node</a> and the browser. | ||
</p> | ||
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<p align=center> | ||
<a href="./LICENSE"> | ||
<img | ||
alt="license:mit" | ||
src="https://img.shields.io/badge/license-mit-green.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href="https://github.com/chaijs/pathval/releases"> | ||
<img | ||
alt="tag:?" | ||
src="https://img.shields.io/github/tag/chaijs/pathval.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href="https://travis-ci.org/chaijs/pathval"> | ||
<img | ||
alt="build:?" | ||
src="https://img.shields.io/travis/chaijs/pathval/master.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href="https://coveralls.io/r/chaijs/pathval"> | ||
<img | ||
alt="coverage:?" | ||
src="https://img.shields.io/coveralls/chaijs/pathval/master.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href="https://www.npmjs.com/packages/pathval"> | ||
<img | ||
alt="npm:?" | ||
src="https://img.shields.io/npm/v/pathval.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href="https://www.npmjs.com/packages/pathval"> | ||
<img | ||
alt="dependencies:?" | ||
src="https://img.shields.io/npm/dm/pathval.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href=""> | ||
<img | ||
alt="devDependencies:?" | ||
src="https://img.shields.io/david/chaijs/pathval.svg?style=flat-square" | ||
/> | ||
</a> | ||
<br/> | ||
<a href="https://saucelabs.com/u/chaijs-pathval"> | ||
<img | ||
alt="Selenium Test Status" | ||
src="https://saucelabs.com/browser-matrix/chaijs-pathval.svg" | ||
/> | ||
</a> | ||
<br> | ||
<a href="https://chai-slack.herokuapp.com/"> | ||
<img | ||
alt="Join the Slack chat" | ||
src="https://img.shields.io/badge/slack-join%20chat-E2206F.svg?style=flat-square" | ||
/> | ||
</a> | ||
<a href="https://gitter.im/chaijs/chai"> | ||
<img | ||
alt="Join the Gitter chat" | ||
src="https://img.shields.io/badge/gitter-join%20chat-D0104D.svg?style=flat-square" | ||
/> | ||
</a> | ||
</p> | ||
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## What is pathval? | ||
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Pathval is a module which you can use to retrieve or set an Object's property for a given `String` path. | ||
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# pathval | ||
## Installation | ||
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## Usage | ||
### Node.js | ||
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``` | ||
var props = require('pathval'); | ||
``` | ||
`pathval` is available on [npm](http://npmjs.org). To install it, type: | ||
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Given: | ||
$ npm install pathval | ||
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```js | ||
var obj = { | ||
prop1: { | ||
arr: ['a', 'b', 'c'] | ||
, str: 'Hello' | ||
} | ||
, prop2: { | ||
arr: [ { nested: 'Universe' } ] | ||
, str: 'Hello again!' | ||
} | ||
} | ||
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var arr = [ { foo: 'bar' } ]; | ||
``` | ||
### Browsers | ||
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Expect: | ||
You can also use it within the browser; install via npm and use the `pathval.js` file found within the download. For example: | ||
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<!-- js | ||
var props = require('./'); | ||
--> | ||
```html | ||
<script src="./node_modules/pathval/pathval.js"></script> | ||
``` | ||
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#### get | ||
## Usage | ||
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```js | ||
props.get(obj, 'prop1.str'); // => "Hello" | ||
props.get(obj, 'prop1.arr[2]'); // => "c" | ||
props.get(obj, 'prop2.arr[0].nested'); // => "Universe" | ||
The primary export of `pathval` is an object which has the following methods: | ||
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props.get(arr, '[0].foo'); // => "bar" | ||
* `hasProperty(object, name)` - Checks whether an `object` has `name`d property or numeric array index. | ||
* `getPathInfo(path, object)` - 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(path, object)` - Retrieves the value of a property at a given `path` inside an `object`'. | ||
* `setPathValue(path, object, value)` - Sets the `value` of a property at a given `path` inside an `object`'. | ||
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props.get(undefined, 'doesnt.matter'); // => undefined | ||
props.get({}, 'doesnt.exist'); // => undefined | ||
```js | ||
var pathval = require('pathval'); | ||
``` | ||
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#### set | ||
#### .hasProperty(object, name) | ||
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```js | ||
props.set(obj, 'hello.universe', 'properties'); | ||
props.set(obj, 'hello.universe[1].properties', 'galaxy'); | ||
props.set(obj, 'hello', 'universe'); | ||
props.set(obj, 'hello[0]', 1); | ||
props.set(obj, 'hello[2]', 3); | ||
``` | ||
var pathval = require('pathval'); | ||
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## Installation | ||
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```bash | ||
npm install pathval | ||
var obj = { prop: 'a value' }; | ||
pathval.hasProperty(obj, 'prop'); // true | ||
``` | ||
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## Tests | ||
#### .getPathInfo(path, object) | ||
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### Running the tests | ||
```js | ||
var pathval = require('pathval'); | ||
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```bash | ||
$ npm test | ||
var obj = { earth: { country: 'Brazil' } }; | ||
pathval.getPathInfo('earth.country', obj); // { parent: { country: 'Brazil' }, name: 'country', value: 'Brazil', exists: true } | ||
``` | ||
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### Test coverage | ||
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```bash | ||
$ npm run-script coverage | ||
``` | ||
#### .getPathValue(path, object) | ||
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### Readme tests | ||
```js | ||
var pathval = require('pathval'); | ||
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```bash | ||
$ npm run-script test-readme | ||
var obj = { earth: { country: 'Brazil' } }; | ||
pathval.getPathValue('earth.country', obj); // 'Brazil' | ||
``` | ||
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## License | ||
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MIT License | ||
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Copyright (c) 2011-2013 Jake Luer jake@alogicalparadox.com | ||
#### .setPathValue(path, object, value) | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated | ||
documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit | ||
persons to whom the Software is furnished to do so, subject to the following conditions: | ||
```js | ||
var pathval = require('pathval'); | ||
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The above copyright notice and this permission notice shall be included in all copies or substantial | ||
portions of the Software. | ||
var obj = { earth: { country: 'Brazil' } }; | ||
pathval.setPathValue('earth.country', obj, 'USA'); | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO | ||
THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, | ||
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
obj.earth.country; // 'USA' | ||
``` |
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