JSON and Uint8Array

A fix using atob() and btoa() functions.

//jsontest3.js
//21aug2016
function A(){
 this.A=1;
 this.B= new Uint8Array(16);
 this.s= new Uint8Array(16);
}

A.prototype.setup=function(){
 var i;
 for(i=0;i<16;i++)this.B[i]=i;
};

function B(){
 this.B= 2; // new Uint8Array(16);
 this.s= 2; //new Uint8Array(16);
 this.A=1;
}


var a=new A();
a.setup();
console.log(a);
//a fix
 a.B=btoa(a.B);
 a.s=btoa(a.s);
 console.log(a);
//
var e=JSON.stringify(a);
console.log(e);
var f=JSON.parse(e);
console.log("f= ",f);
//a fix
 f.B=E.toUint8Array(atob(f.B));
 f.s=E.toUint8Array(atob(f.s));
console.log("f= ",f);

console.log(" ");
var b=new B();
console.log(b);
var e1=JSON.stringify(b);
console.log(e1);
var f1=JSON.parse(e1);
console.log("f1= ",f1);

The output:

>echo(0);
{ "A": 1,
  "B": new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]),
  "s": new Uint8Array(16)
 }
{ "A": 1,
  "B": "AAECAwQFBgcICQoLDA0ODw==",
  "s": "AAAAAAAAAAAAAAAAAAAAAA=="
 }
{"A":1,"B":"AAECAwQFBgcICQoLDA0ODw==","s":"AAAAAAAAAAAAAAAAAAAAAA=="}
f=  { "A": 1,
  "B": "AAECAwQFBgcICQoLDA0ODw==",
  "s": "AAAAAAAAAAAAAAAAAAAAAA=="
 }
f=  { "A": 1,
  "B": new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]),
  "s": new Uint8Array(16)
 }
 
{ "B": 2, "s": 2, "A": 1 }
{"B":2,"s":2,"A":1}
f1=  { "B": 2, "s": 2, "A": 1 }

1 Attachment

• jsontest3.js