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fast-json-stable-stringify/.eslintrc.yml deleted 100644 → 0
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extends: eslint:recommended
env:
node: true
browser: true
rules:
block-scoped-var: 2
callback-return: 2
dot-notation: 2
indent: 2
linebreak-style: [2, unix]
new-cap: 2
no-console: [2, allow: [warn, error]]
no-else-return: 2
no-eq-null: 2
no-fallthrough: 2
no-invalid-this: 2
no-return-assign: 2
no-shadow: 1
no-trailing-spaces: 2
no-use-before-define: [2, nofunc]
quotes: [2, single, avoid-escape]
semi: [2, always]
strict: [2, global]
valid-jsdoc: [2, requireReturn: false]
no-control-regex: 0
no-useless-escape: 2
fast-json-stable-stringify/LICENSE deleted 100644 → 0
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This software is released under the MIT license:
Copyright (c) 2017 Evgeny Poberezkin
Copyright (c) 2013 James Halliday
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# fast-json-stable-stringify
Deterministic `JSON.stringify()` - a faster version of [@substack](https://github.com/substack)'s json-stable-strigify without [jsonify](https://github.com/substack/jsonify).
You can also pass in a custom comparison function.
[![Build Status](https://travis-ci.org/epoberezkin/fast-json-stable-stringify.svg?branch=master)](https://travis-ci.org/epoberezkin/fast-json-stable-stringify)
[![Coverage Status](https://coveralls.io/repos/github/epoberezkin/fast-json-stable-stringify/badge.svg?branch=master)](https://coveralls.io/github/epoberezkin/fast-json-stable-stringify?branch=master)
# example
``` js
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
``` js
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:
``` js
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:
``` js
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](https://npmjs.org) 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](https://tidelift.com/subscription/pkg/npm-fast-json-stable-stringify?utm_source=npm-fast-json-stable-stringify&utm_medium=referral&utm_campaign=enterprise&utm_term=repo) - 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](https://tidelift.com/security).
Tidelift will coordinate the fix and disclosure. Please do NOT report security vulnerability via GitHub issues.
# license
[MIT](https://github.com/epoberezkin/fast-json-stable-stringify/blob/master/LICENSE)
fast-json-stable-stringify/benchmark/index.js deleted 100644 → 0
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'use strict';
const Benchmark = require('benchmark');
const suite = new Benchmark.Suite;
const testData = require('./test.json');
const stringifyPackages = {
// 'JSON.stringify': JSON.stringify,
'fast-json-stable-stringify': require('../index'),
'json-stable-stringify': true,
'fast-stable-stringify': true,
'faster-stable-stringify': true
};
for (const name in stringifyPackages) {
let func = stringifyPackages[name];
if (func === true) func = require(name);
suite.add(name, function() {
func(testData);
});
}
suite
.on('cycle', (event) => console.log(String(event.target)))
.on('complete', function () {
console.log('The fastest is ' + this.filter('fastest').map('name'));
})
.run({async: true});
fast-json-stable-stringify/benchmark/test.json deleted 100644 → 0
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[
{
"_id": "59ef4a83ee8364808d761beb",
"index": 0,
"guid": "e50ffae9-7128-4148-9ee5-40c3fc523c5d",
"isActive": false,
"balance": "$2,341.81",
"picture": "http://placehold.it/32x32",
"age": 28,
"eyeColor": "brown",
"name": "Carey Savage",
"gender": "female",
"company": "VERAQ",
"email": "careysavage@veraq.com",
"phone": "+1 (897) 574-3014",
"address": "458 Willow Street, Henrietta, California, 7234",
"about": "Nisi reprehenderit nulla ad officia pariatur non dolore laboris irure cupidatat laborum. Minim eu ex Lorem adipisicing exercitation irure minim sunt est enim mollit incididunt voluptate nulla. Ut mollit anim reprehenderit et aliqua ex esse aliquip. Aute sit duis deserunt do incididunt consequat minim qui dolor commodo deserunt et voluptate.\r\n",
"registered": "2014-05-21T01:56:51 -01:00",
"latitude": 63.89502,
"longitude": 62.369807,
"tags": [
"nostrud",
"nisi",
"consectetur",
"ullamco",
"cupidatat",
"culpa",
"commodo"
],
"friends": [
{
"id": 0,
"name": "Henry Walls"
},
{
"id": 1,
"name": "Janice Baker"
},
{
"id": 2,
"name": "Russell Bush"
}
],
"greeting": "Hello, Carey Savage! You have 4 unread messages.",
"favoriteFruit": "banana"
},
{
"_id": "59ef4a83ff5774a691454e89",
"index": 1,
"guid": "2bee9efc-4095-4c2e-87ef-d08c8054c89d",
"isActive": true,
"balance": "$1,618.15",
"picture": "http://placehold.it/32x32",
"age": 35,
"eyeColor": "blue",
"name": "Elinor Pearson",
"gender": "female",
"company": "FLEXIGEN",
"email": "elinorpearson@flexigen.com",
"phone": "+1 (923) 548-3751",
"address": "600 Bayview Avenue, Draper, Montana, 3088",
"about": "Mollit commodo ea sit Lorem velit. Irure anim esse Lorem sint quis officia ut. Aliqua nisi dolore in aute deserunt mollit ex ea in mollit.\r\n",
"registered": "2017-04-22T07:58:41 -01:00",
"latitude": -87.824919,
"longitude": 69.538927,
"tags": [
"fugiat",
"labore",
"proident",
"quis",
"eiusmod",
"qui",
"est"
],
"friends": [
{
"id": 0,
"name": "Massey Wagner"
},
{
"id": 1,
"name": "Marcella Ferrell"
},
{
"id": 2,
"name": "Evans Mckee"
}
],
"greeting": "Hello, Elinor Pearson! You have 3 unread messages.",
"favoriteFruit": "strawberry"
},
{
"_id": "59ef4a839ec8a4be4430b36b",
"index": 2,
"guid": "ddd6e8c0-95bd-416d-8b46-a768d6363809",
"isActive": false,
"balance": "$2,046.95",
"picture": "http://placehold.it/32x32",
"age": 40,
"eyeColor": "green",
"name": "Irwin Davidson",
"gender": "male",
"company": "DANJA",
"email": "irwindavidson@danja.com",
"phone": "+1 (883) 537-2041",
"address": "439 Cook Street, Chapin, Kentucky, 7398",
"about": "Irure velit non commodo aliqua exercitation ut nostrud minim magna. Dolor ad ad ut irure eu. Non pariatur dolor eiusmod ipsum do et exercitation cillum. Et amet laboris minim eiusmod ullamco magna ea reprehenderit proident sunt.\r\n",
"registered": "2016-09-01T07:49:08 -01:00",
"latitude": -49.803812,
"longitude": 104.93279,
"tags": [
"consequat",
"enim",
"quis",
"magna",
"est",
"culpa",
"tempor"
],
"friends": [
{
"id": 0,
"name": "Ruth Hansen"
},
{
"id": 1,
"name": "Kathrine Austin"
},
{
"id": 2,
"name": "Rivera Munoz"
}
],
"greeting": "Hello, Irwin Davidson! You have 2 unread messages.",
"favoriteFruit": "banana"
}
]
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var stringify = require('../');
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);
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var stringify = require('../');
var obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };
console.log(stringify(obj));
fast-json-stable-stringify/example/str.js deleted 100644 → 0
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var stringify = require('../');
var obj = { c: 6, b: [4,5], a: 3 };
console.log(stringify(obj));
fast-json-stable-stringify/example/value_cmp.js deleted 100644 → 0
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var stringify = require('../');
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);
fast-json-stable-stringify/index.d.ts deleted 100644 → 0
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declare module 'fast-json-stable-stringify' {
function stringify(obj: any): string;
export = stringify;
}
fast-json-stable-stringify/index.js deleted 100644 → 0
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'use strict';
module.exports = function (data, opts) {
if (!opts) opts = {};
if (typeof opts === 'function') opts = { cmp: opts };
var cycles = (typeof opts.cycles === 'boolean') ? opts.cycles : false;
var cmp = opts.cmp && (function (f) {
return function (node) {
return function (a, b) {
var aobj = { key: a, value: node[a] };
var bobj = { key: b, value: node[b] };
return f(aobj, bobj);
};
};
})(opts.cmp);
var seen = [];
return (function stringify (node) {
if (node && node.toJSON && typeof node.toJSON === 'function') {
node = node.toJSON();
}
if (node === undefined) return;
if (typeof node == 'number') return isFinite(node) ? '' + node : 'null';
if (typeof node !== 'object') return JSON.stringify(node);
var i, out;
if (Array.isArray(node)) {
out = '[';
for (i = 0; i < node.length; i++) {
if (i) out += ',';
out += stringify(node[i]) || 'null';
}
return out + ']';
}
if (node === null) return 'null';
if (seen.indexOf(node) !== -1) {
if (cycles) return JSON.stringify('__cycle__');
throw new TypeError('Converting circular structure to JSON');
}
var seenIndex = seen.push(node) - 1;
var keys = Object.keys(node).sort(cmp && cmp(node));
out = '';
for (i = 0; i < keys.length; i++) {
var key = keys[i];
var value = stringify(node[key]);
if (!value) continue;
if (out) out += ',';
out += JSON.stringify(key) + ':' + value;
}
seen.splice(seenIndex, 1);
return '{' + out + '}';
})(data);
};
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{
"name": "fast-json-stable-stringify",
"version": "2.1.0",
"description": "deterministic `JSON.stringify()` - a faster version of substack's json-stable-strigify without jsonify",
"main": "index.js",
"types": "index.d.ts",
"dependencies": {},
"devDependencies": {
"benchmark": "^2.1.4",
"coveralls": "^3.0.0",
"eslint": "^6.7.0",
"fast-stable-stringify": "latest",
"faster-stable-stringify": "latest",
"json-stable-stringify": "latest",
"nyc": "^14.1.0",
"pre-commit": "^1.2.2",
"tape": "^4.11.0"
},
"scripts": {
"eslint": "eslint index.js test",
"test-spec": "tape test/*.js",
"test": "npm run eslint && nyc npm run test-spec"
},
"repository": {
"type": "git",
"url": "git://github.com/epoberezkin/fast-json-stable-stringify.git"
},
"homepage": "https://github.com/epoberezkin/fast-json-stable-stringify",
"keywords": [
"json",
"stringify",
"deterministic",
"hash",
"stable"
],
"author": {
"name": "James Halliday",
"email": "mail@substack.net",
"url": "http://substack.net"
},
"license": "MIT",
"nyc": {
"exclude": [
"test",
"node_modules"
],
"reporter": [
"lcov",
"text-summary"
]
}
}
fast-json-stable-stringify/test/cmp.js deleted 100644 → 0
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'use strict';
var test = require('tape');
var stringify = require('../');
test('custom comparison function', function (t) {
t.plan(1);
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;
});
t.equal(s, '{"c":8,"b":[{"z":6,"y":5,"x":4},7],"a":3}');
});
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'use strict';
var test = require('tape');
var stringify = require('../');
test('nested', function (t) {
t.plan(1);
var obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };
t.equal(stringify(obj), '{"a":3,"b":[{"x":4,"y":5,"z":6},7],"c":8}');
});
test('cyclic (default)', function (t) {
t.plan(1);
var one = { a: 1 };
var two = { a: 2, one: one };
one.two = two;
try {
stringify(one);
} catch (ex) {
t.equal(ex.toString(), 'TypeError: Converting circular structure to JSON');
}
});
test('cyclic (specifically allowed)', function (t) {
t.plan(1);
var one = { a: 1 };
var two = { a: 2, one: one };
one.two = two;
t.equal(stringify(one, {cycles:true}), '{"a":1,"two":{"a":2,"one":"__cycle__"}}');
});
test('repeated non-cyclic value', function(t) {
t.plan(1);
var one = { x: 1 };
var two = { a: one, b: one };
t.equal(stringify(two), '{"a":{"x":1},"b":{"x":1}}');
});
test('acyclic but with reused obj-property pointers', function (t) {
t.plan(1);
var x = { a: 1 };
var y = { b: x, c: x };
t.equal(stringify(y), '{"b":{"a":1},"c":{"a":1}}');
});
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'use strict';
var test = require('tape');
var stringify = require('../');
test('simple object', function (t) {
t.plan(1);
var obj = { c: 6, b: [4,5], a: 3, z: null };
t.equal(stringify(obj), '{"a":3,"b":[4,5],"c":6,"z":null}');
});
test('object with undefined', function (t) {
t.plan(1);
var obj = { a: 3, z: undefined };
t.equal(stringify(obj), '{"a":3}');
});
test('object with null', function (t) {
t.plan(1);
var obj = { a: 3, z: null };
t.equal(stringify(obj), '{"a":3,"z":null}');
});
test('object with NaN and Infinity', function (t) {
t.plan(1);
var obj = { a: 3, b: NaN, c: Infinity };
t.equal(stringify(obj), '{"a":3,"b":null,"c":null}');
});
test('array with undefined', function (t) {
t.plan(1);
var obj = [4, undefined, 6];
t.equal(stringify(obj), '[4,null,6]');
});
test('object with empty string', function (t) {
t.plan(1);
var obj = { a: 3, z: '' };
t.equal(stringify(obj), '{"a":3,"z":""}');
});
test('array with empty string', function (t) {
t.plan(1);
var obj = [4, '', 6];
t.equal(stringify(obj), '[4,"",6]');
});
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'use strict';
var test = require('tape');
var stringify = require('../');
test('toJSON function', function (t) {
t.plan(1);
var obj = { one: 1, two: 2, toJSON: function() { return { one: 1 }; } };
t.equal(stringify(obj), '{"one":1}' );
});
test('toJSON returns string', function (t) {
t.plan(1);
var obj = { one: 1, two: 2, toJSON: function() { return 'one'; } };
t.equal(stringify(obj), '"one"');
});
test('toJSON returns array', function (t) {
t.plan(1);
var obj = { one: 1, two: 2, toJSON: function() { return ['one']; } };
t.equal(stringify(obj), '["one"]');
});
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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This is a stub types definition for @types/fast-json-stable-stringify (https://github.com/epoberezkin/fast-json-stable-stringify).
fast-json-stable-stringify provides its own type definitions, so you don't need @types/fast-json-stable-stringify installed!
\ No newline at end of file
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{
"name": "@types/fast-json-stable-stringify",
"version": "2.1.0",
"typings": null,
"description": "Stub TypeScript definitions entry for fast-json-stable-stringify, which provides its own types definitions",
"main": "",
"scripts": {},
"author": "",
"license": "MIT",
"dependencies": {
"fast-json-stable-stringify": "*"
}
}
\ No newline at end of file
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