object-dig
Version:
This allow you to use method like Ruby's hash#dig in JavaScript.
47 lines (30 loc) • 987 B
Markdown
# object-dig
[](https://travis-ci.org/joe-re/object-dig)
This allow you to use method like Ruby's hash#dig in JavaScript.
> http://ruby-doc.org/core-2.3.0_preview1/Hash.html#method-i-dig
>> Retrieves the value object corresponding to the each key objects repeatedly.
# Install
```
$ npm install --save object-dig
```
# Usage
```js
var dig = require('object-dig');
var object = { a: { b: { c: 'c' } } };
dig(object, 'a', 'b');
// => { c: 'c' }
dig(object, 'a', 'b', 'c');
// => 'c'
dig(object, 'a', 'unknownProp', 'c');
// =>undefined
```
and you can give function object to dig.
Function object's argument is result of just before evaluating.
```js
dig(object, 'a', 'b', 'c', (val) => `${val} was changed`);
// => 'c was changed'
dig(object, 'a', 'b', 'c', (val) => `${val} was changed`, (val) => `${val} more`);
// => 'c was changed more'
```
# License
MIT © [joe-re](https://github.com/joe-re)