JS deep copy Object Array instance analysis

This article analyzes the JS deep copy Object Array examples. Share it for your reference, as follows:

function cloneObj(o)
{
  var isArray = o instanceof Array;
  var isObject = o instanceof Object;
  if (!isObject) return o;
  var n = (isArray ? [] : {});
  for (var k in o) n[k] = cloneObj(o[k]);
  return n;
}

Problems encountered

typeof [] result is object
typeof {} result is object

[] instanceof Array result is true
{} instanceof Object The result is true
[] instanceof Object also result is true

Explain that Array in JS is a subclass of Object.

For more information about JavaScript, readers who are interested in reading this site's special topic:Summary of JavaScript search algorithm skills》、《Summary of JavaScript animation effects and techniques》、《Summary of JavaScript Errors and Debugging Skills》、《Summary of JavaScript data structure and algorithm techniques》、《Summary of JavaScript traversal algorithm and skills"and"Summary of JavaScript mathematical operations usage》

I hope this article will be helpful to everyone's JavaScript programming.