seroval

Stringify JS values

Install

1npm install --save seroval

1yarn add seroval

1pnpm add seroval

Usage

1import { serialize } from 'seroval';
2
3const object = {
4  number: [Math.random(), -0, NaN, Infinity, -Infinity],
5  string: ['hello world', '<script>Hello World</script>'],
6  boolean: [true, false],
7  null: null,
8  undefined: undefined,
9  bigint: 9007199254740991n,
10  array: [,,,], // holes
11  regexp: /[a-z0-9]+/i,
12  date: new Date(),
13  map: new Map([['hello', 'world']]),
14  set: new Set(['hello', 'world']),
15};
16
17// self cyclic references
18// recursive objects
19object.self = object;
20// recursive arrays
21object.array.push(object.array);
22// recursive maps
23object.map.set('self', object.map);
24// recursive sets
25object.set.add(object.set);
26
27// mutual cyclic references
28object.array.push(object.map);
29object.map.set('mutual', object.set);
30object.set.add(object.array);
31
32const result = serialize(object);
33console.log(result);

Output (as a string):

1((h,j,k,m,o)=>(o={number:[0.5337763749243287,-0,0/0,1/0,-1/0],string:["hello world","\x3Cscript>Hello World\x3C/script>"],boolean:[!0,!1],null:null,undefined:void 0,bigint:9007199254740991n,array:h=[,,,,k=(j=[],new Map([["hello","world"],["mutual",m=new Set(["hello","world"])]]))],regexp:/[a-z0-9]+/i,date:new Date("2023-12-07T17:28:57.909Z"),map:k,set:m},h[3]=h,k.set("self",k),m.add(m).add(h),o.self=o,o))()
2
3// Formatted for readability
4((h, j, k, m, o) => (
5  (o = {
6    number: [0.5337763749243287, -0, 0 / 0, 1 / 0, -1 / 0],
7    string: ["hello world", "\x3Cscript>Hello World\x3C/script>"],
8    boolean: [!0, !1],
9    null: null,
10    undefined: void 0,
11    bigint: 9007199254740991n,
12    array: (h = [
13      ,
14      ,
15      ,
16      ,
17      (k =
18        ((j = []),
19        new Map([
20          ["hello", "world"],
21          ["mutual", (m = new Set(["hello", "world"]))],
22        ]))),
23    ]),
24    regexp: /[a-z0-9]+/i,
25    date: new Date("2023-12-07T17:28:57.909Z"),
26    map: k,
27    set: m,
28  }),
29  (h[3] = h),
30  k.set("self", k),
31  m.add(m).add(h),
32  (o.self = o),
33  o
34))();

Docs

• Serialization
• Compatibility
• Isomorphic References

Sponsors

License

MIT © lxsmnsyc