Set and get values on objects via dot-notation strings.
var deep = require('deep-get-set');
var obj = {
foo: {
bar: 'baz',
'bar.baz': 'qux'
}
};
// Get
console.log(deep(obj, 'foo.bar'));
// => "baz"
// Get with array
console.log(deep(obj, ['foo', 'bar.baz']));
// => "qux"
// Set
deep(obj, 'foo.bar', 'hello');
console.log(obj.foo.bar);
// => "hello"
// Set with array
deep(obj, ['foo', 'bar.baz'], 'goodbye');
console.log(obj.foo['bar.baz']);
// => "goodbye"
Where path
is a dot-notation string foo.bar
or an array of strings.
- If
value
is passed it will be set on the path. - Set
deep.p = true
if you want non-existent paths to be initialized. - If you want to unset (or delete), pass
undefined
as thevalue
.
With npm do:
npm install deep-get-set
There's a dozen modules like this on npm. This is a fork from @juliangruber's deep-access module, with a big portion of code directly copied from here: https://github.com/substack/js-traverse/blob/master/index.js#L11-L18.
Similar modules:
- https://github.com/deoxxa/dotty (this one I like because it uses recursion)
- https://github.com/Ntran013/dot-access (pretty much the same as this)
- https://github.com/substack/js-traverse (much more complex and useful)
MIT