dottie

Fast and safe nested object access and manipulation in JavaScript

Dottie helps you easily (and with sacrificing too much performance) look up and play with nested keys in objects, without them throwing up in your face.

Install

npm install dottie

Usage

For detailed usage, check source or tests.

Get value

Gets nested value, or undefined if unreachable, or a default value if passed.

var values = {
  some: {
    nested: {
        key: 'foobar';
    }
  },
  'some.dot.included': {
    key: 'barfoo'
  }
}
 
dottie.get(values, 'some.nested.key'); // returns 'foobar' 
dottie.get(values, 'some.undefined.key'); // returns undefined 
dottie.get(values, 'some.undefined.key', 'defaultval'); // returns 'defaultval' 
dottie.get(values, ['some.dot.included', 'key']); // returns 'barfoo'

Set value

Sets nested value, creates nested structure if needed

dottie.set(values, 'some.nested.value', someValue);
dottie.set(values, ['some.dot.included', 'value'], someValue);
dottie.set(values, 'some.nested.object', someValue, {
  force: true // force overwrite defined non-object keys into objects if needed 
});

Transform object

Transform object from keys with dottie notation to nested objects

var values = {
  'user.name': 'Gummy Bear',
  'user.email': 'gummybear@candymountain.com',
  'user.professional.title': 'King',
  'user.professional.employer': 'Candy Mountain'
};
var transformed = dottie.transform(values);
 
/*
{
  user: {
    name: 'Gummy Bear',
    email: 'gummybear@candymountain.com',
    professional: {
      title: 'King',
      employer: 'Candy Mountain'
    }
  }
}
*/

With a custom delimiter

var values = {
  'user_name': 'Mick Hansen',
  'user_email': 'maker@mhansen.io'
};
var transformed = dottie.transform(values, { delimiter: '_' });
 
/*
{
  user: {
    name: 'Mick Hansen',
    email: 'maker@mhansen.io'
  }
}
*/

Get paths in object

var object = {
  a: 1,
  b: {
    c: 2,
    d: { e: 3 }
  }
};
 
dottie.paths(object); // ["a", "b.c", "b.d.e"];

Performance

0.3.1 and up ships with dottie.memoizePath: true by default, if this causes any bugs, please try setting it to false

License

MIT

dottie

Install

Usage

Get value

Set value

Transform object

With a custom delimiter

Get paths in object

Performance

License

Private packages for the whole team

Collaborators

Stats

Try it out

Keywords

Dependencies

Dependents