What is the most efficient way to deep clone an object in JavaScript?
Reliable cloning using a library
Since cloning objects is not trivial (complex types, circular references, function etc.), most major libraries provide function to clone objects. Don't reinvent the wheel - if you're already using a library, check if it has an object cloning function. For example,
- lodash -
cloneDeep; can be imported separately via the lodash.clonedeep module and is probably your best choice if you're not already using a library that provides a deep cloning function - AngularJS -
angular.copy - jQuery -
jQuery.extend(true, { }, oldObject);.clone()only clones DOM elements