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                            ~~~
let arr = [1,2,3];
JSON.stringify(arr);//'[1,2,3]'
typeof JSON.stringify(arr);//string

let string = '[1,2,3]';
console.log(JSON.parse(string))//[1,2,3]
console.log(typeof JSON.parse(string))//object
~~~
********SON.stringify()將對象a變成了字符串********
************JSON.parse()將字符串c還原成對象************


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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