Determines whether the second geometry is completely within the first geometry.
npm install @turf/boolean-containsTests whether geometry a contains geometry b.
The interiors of both geometries must intersect, and the interior and boundary of geometry b must not intersect the exterior of geometry a.
booleanContains(a, b) is equivalent to booleanWithin(b, a)
* feature1 ([Geometry][1] | [Feature][2]\
* feature2 ([Geometry][1] | [Feature][2]\
``javascript
var line = turf.lineString([[1, 1], [1, 2], [1, 3], [1, 4]]);
var point = turf.point([1, 2]);
turf.booleanContains(line, point);
//=true
`
Returns [boolean][3] true/false
[1]: https://tools.ietf.org/html/rfc7946#section-3.1
[2]: https://tools.ietf.org/html/rfc7946#section-3.2
[3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean
---
This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.
Install this single module individually:
`sh`
$ npm install @turf/boolean-contains
Or install the all-encompassing @turf/turf module that includes all modules as functions:
`sh``
$ npm install @turf/turf