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Lodash _.get


The lodash library provides a powerful utility called _.get which is used to retrieve the value of a property from an object using a provided path.

Syntax: _.get(object, path, [defaultValue])


  • object (Object): The object to query.
  • path (Array|string): The path of the property to get.
  • [defaultValue] (*): The value returned for undefined resolved values.


  • (*): Returns the resolved value.

Example Usage:

const 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'
_.get(object, 'a[1].b.c', 'default'); // => 'default'

In the above example, _.get is used to retrieve the value of the property c from the object object using the provided path 'a[0].b.c'. The second example shows that the path can also be provided as an array. If the value of the property is not defined, the optional defaultValue parameter is used to return a default value.

The use of the _.get method is particularly useful when working with complex nested objects, where accessing properties directly can result in errors due to missing nested structures. Instead, _.get gracefully returns undefined if any part of the path is not found.

Overall, the _.get method is a powerful and reliable utility that should be a part of every JavaScript developer's toolkit.