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<h1 align=center> <a href="http://chaijs.com" title="Chai Documentation"> <img alt="ChaiJS" src="http://chaijs.com/img/chai-logo.png"> </a> <br> pathval </h1> <p align=center> Tool for Object value retrieval given a string path for <a href="http://nodejs.org">node</a> and the browser. </p> <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>

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. 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:

<script src="./node_modules/pathval/pathval.js"></script>

Usage

The primary export of pathval is an object which has the following methods:

hasProperty(object, name) - Checks whether an object has named 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.

var pathval = require('pathval');

.hasProperty(object, name)

var pathval = require('pathval');

var obj = { prop: 'a value' };
pathval.hasProperty(obj, 'prop'); // true

.getPathInfo(object, path)

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)

var pathval = require('pathval');

var obj = { earth: { country: 'Brazil' } };
pathval.getPathValue(obj, 'earth.country'); // 'Brazil'

.setPathValue(object, path, value)

var pathval = require('pathval');

var obj = { earth: { country: 'Brazil' } };
pathval.setPathValue(obj, 'earth.country', 'USA');

obj.earth.country; // 'USA'