bdde081050
Added test to ensure that release notes are parsed properly Updated to latest dependencies to fix security vulnerability Updated GH Actions Workflow to run test before updating tag Updated README.md to reflect proper whatsnew documentation.
fast-json-stable-stringify
Deterministic JSON.stringify() - a faster version of @substack's json-stable-strigify without jsonify.
You can also pass in a custom comparison function.
example
var stringify = require('fast-json-stable-stringify');
var obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };
console.log(stringify(obj));
output:
{"a":3,"b":[{"x":4,"y":5,"z":6},7],"c":8}
methods
var stringify = require('fast-json-stable-stringify')
var str = stringify(obj, opts)
Return a deterministic stringified string str from the object obj.
options
cmp
If opts is given, you can supply an opts.cmp to have a custom comparison
function for object keys. Your function opts.cmp is called with these
parameters:
opts.cmp({ key: akey, value: avalue }, { key: bkey, value: bvalue })
For example, to sort on the object key names in reverse order you could write:
var stringify = require('fast-json-stable-stringify');
var obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };
var s = stringify(obj, function (a, b) {
return a.key < b.key ? 1 : -1;
});
console.log(s);
which results in the output string:
{"c":8,"b":[{"z":6,"y":5,"x":4},7],"a":3}
Or if you wanted to sort on the object values in reverse order, you could write:
var stringify = require('fast-json-stable-stringify');
var obj = { d: 6, c: 5, b: [{z:3,y:2,x:1},9], a: 10 };
var s = stringify(obj, function (a, b) {
return a.value < b.value ? 1 : -1;
});
console.log(s);
which outputs:
{"d":6,"c":5,"b":[{"z":3,"y":2,"x":1},9],"a":10}
cycles
Pass true in opts.cycles to stringify circular property as __cycle__ - the result will not be a valid JSON string in this case.
TypeError will be thrown in case of circular object without this option.
install
With npm do:
npm install fast-json-stable-stringify
benchmark
To run benchmark (requires Node.js 6+):
node benchmark
Results:
fast-json-stable-stringify x 17,189 ops/sec ±1.43% (83 runs sampled)
json-stable-stringify x 13,634 ops/sec ±1.39% (85 runs sampled)
fast-stable-stringify x 20,212 ops/sec ±1.20% (84 runs sampled)
faster-stable-stringify x 15,549 ops/sec ±1.12% (84 runs sampled)
The fastest is fast-stable-stringify
Enterprise support
fast-json-stable-stringify package is a part of Tidelift enterprise subscription - it provides a centralised commercial support to open-source software users, in addition to the support provided by software maintainers.
Security contact
To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure. Please do NOT report security vulnerability via GitHub issues.