javascript - How to create new json object from exiting one? -

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• what efficient way deep clone object in javascript? 51 answers

i want create new json object exiting one, because if create

var person1= { first name: 'john',   last name: 'smith',   age: 54,   dateofbirth: '31-08-68',  } var person2=person1; delete person2.age 

this delete age person1, don't want delete age person1, person2. because need initialize other person also. how create new json object exiting object .

you must clone object. quick way is

var person2=json.parse(json.stringify(person1));