LimePot
76722fec47
Going to slowly work on a Bulma site, which will end up being the main site. Currently under the /BETA/ folder so Alpha site will still be main site.
56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
var castPath = require('./_castPath'),
|
|
isFunction = require('./isFunction'),
|
|
toKey = require('./_toKey');
|
|
|
|
/**
|
|
* This method is like `_.get` except that if the resolved value is a
|
|
* function it's invoked with the `this` binding of its parent object and
|
|
* its result is returned.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path of the property to resolve.
|
|
* @param {*} [defaultValue] The value returned for `undefined` resolved values.
|
|
* @returns {*} Returns the resolved value.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
|
|
*
|
|
* _.result(object, 'a[0].b.c1');
|
|
* // => 3
|
|
*
|
|
* _.result(object, 'a[0].b.c2');
|
|
* // => 4
|
|
*
|
|
* _.result(object, 'a[0].b.c3', 'default');
|
|
* // => 'default'
|
|
*
|
|
* _.result(object, 'a[0].b.c3', _.constant('default'));
|
|
* // => 'default'
|
|
*/
|
|
function result(object, path, defaultValue) {
|
|
path = castPath(path, object);
|
|
|
|
var index = -1,
|
|
length = path.length;
|
|
|
|
// Ensure the loop is entered when path is empty.
|
|
if (!length) {
|
|
length = 1;
|
|
object = undefined;
|
|
}
|
|
while (++index < length) {
|
|
var value = object == null ? undefined : object[toKey(path[index])];
|
|
if (value === undefined) {
|
|
index = length;
|
|
value = defaultValue;
|
|
}
|
|
object = isFunction(value) ? value.call(object) : value;
|
|
}
|
|
return object;
|
|
}
|
|
|
|
module.exports = result;
|