Shallow And Deep Copy

Shallow Copy

Deep Copy

• JSON

  function clone(obj) {
      return JSON.parse(JSON.stringify(obj));
  }
  var cloned = clone({ a:1 });
  

• deepcopy

  • Installation

    npm install deepcopy
    

  • Usage

    • Node

      var deepcopy = require("deepcopy");
      

    • Browser

      <script src="deepcopy.min.js"></script>
      

  • Example

    var base, copy;
    
    base = {
      desserts: [
        { name: "cake"      },
        { name: "ice cream" },
        { name: "pudding"   }
      ]
    };
    
    copy = deepcopy(base);
    base.desserts = null;
    
    console.log(base);
    // { desserts: null } 
    console.log(copy);
    // { desserts: [ { name: 'cake' }, { name: 'ice cream' }, { name: 'pudding' } ] }
    

References

[1] deepcopy@NPM, deepcopy — deep copy for any data