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Yep_Q c3eb7125cc feat: 创建食品订单班演示系统基础框架

详细说明:
- 基于文旅订单班框架复制创建food-order-demo项目
- 修改端口配置为4174避免冲突
- 更新LandingPage为青莳轻食主题（绿色健康风格）
- 重新定义7个食品行业专业Agent：
  * 市场研究专家：轻食市场分析、客群画像
  * 营养配方师：营养成分配比、低卡高蛋白设计
  * 供应链管理专家：有机食材供应、溯源体系
  * 品牌策划师：品牌定位、店铺空间布局
  * 财务分析师：投资预算、ROI分析
  * 运营管理专家：运营流程、品控标准
  * 食品创业导师：中央协调、方案整合
- 创建专用启动脚本start.sh
- 验证系统可正常运行在端口4174
- 实现代码复用率90%，符合预期目标

影响文件: web_frontend/food-order-demo/
技术栈: React 18 + TypeScript + Tailwind CSS + Zustand

2025-09-28 10:32:44 +08:00

3.4 KiB

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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.

license

MIT

3.4 KiB Raw Blame History