dot2val

Set or get a value within a deeply nested object using `dot' notation

Installation

1npm install --save dot2val

Usage

1var dot2val = require('dot2val');

Given:

1var obj = {
2    prop1: {
3        arr: ['a', 'b', 'c']
4      , str: 'Hello'
5    }
6  , prop2: {
7        arr: [ { nested: 'Universe' } ]
8      , str: 'Hello again!'
9    }
10}
11
12var arr = [ { foo: 'bar' } ];

Expect:

get

1dot2val.get(obj, 'prop1.str'); // => "Hello"
2dot2val.get(obj, 'prop1.arr.2'); // => "c"
3dot2val.get(obj, 'prop2.arr.0.nested'); // => "Universe"
4
5dot2val.get(arr, '0.foo'); // => "bar"
6
7dot2val.get(undefined, 'doesnt.matter'); // => undefined
8dot2val.get({}, 'doesnt.exist'); // => undefined
9dot2val.get({}, 'doesnt.exist', 'default value'); // => "default value"

set

1dot2val.set(obj, 'hello.universe', 'properties');
2dot2val.set(obj, 'hello1', 'universe');
3dot2val.set(obj, 'prop2');        // delete obj['prop2']

Try dot2val in your browser

License

MIT