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“Object” Methods
_.get(object, path, [defaultValue])
Gets the value at path of object. If the resolved value is undefined, the defaultValue is returned in its place.
引入版本
3.7.0
参数
object
(Object)
: The object to query.
path
(Array|string)
: The path of the property to get.
[defaultValue]
(*)
: The value returned for
undefined resolved values.
返回值
(*)
: Returns the resolved value.
示例
var object = { 'a': [{ 'b': { 'c': 3 } }] }; _.get(object, 'a[0].b.c');// => 3 _.get(object, ['a', '0', 'b', 'c']);// => 3 _.get(object, 'a.b.c', 'default');// => 'default'