js对json数据进行操作
不止增删改查，有一点点类似于数据库，也是朝着这个方向发展

如有问题，可以在评论区提出，或者去gitee上说明

最后麻烦如果可以，请点击star和fork

qk-json

作者：QuKin

邮箱：13606184008@163.com

了解

介绍：js对json数据进行操作

版本：V1.3.2

方法简洁明了的操作

有没有为网上哪些对json操作感到厌烦的
有些甚至还无法完成
感觉写出来不优雅的
都可以瞅瞅这个包，代码简洁好用，并且操作方式也非常的简单
源码使用JS类写的并且有注释，不会还可以去看文档，文档连接在下方
如果觉得这个方法好的，还可以从源码里面下载下来直接在你的项目中用
我就不把所有方法列出来了，比较多，好像有二十多个方法呢
如果没有npm，还提供了一个js方法，直接script src导入即可

安装

NPM

npm i qk-json

CDN

开发板

https://unpkg.com/qk-json@1.3.2/qk-json.js

https://cdn.jsdelivr.net/gh/QuKin/qk-json/qk-json.js

压缩版

https://unpkg.com/qk-json@1.3.2/qk-json.min.js

https://cdn.jsdelivr.net/gh/QuKin/qk-json/qk-json.min.js

源码

Gitee

GitHub

文档

国内

国外

更新说明

V1.3.0

更新了四种常用的连表查询：内连接、左连接、右连接和完全连接，还有json去重

目录结构

使用

起始

先要引入qk-json，并生成一个json数据

const index = require("qk-json");
let json = [{ "id": 0, "name": "aaa" },{ "id": 1, "name": "bbb" },{ "id": 2, "name": "ccc" },{ "id": 3, "name": "ddd" },{ "id": 4, "name": "eee" },{ "id": 5, "name": "fff" },{ "id": 6, "name": "ggg" },{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
];

get

获取值

代码

let main = new index(json);
console.log(main.get());
console.log(main.get(3));

运行效果

[{ "id": 0, "name": "aaa" },{ "id": 1, "name": "bbb" },{ "id": 2, "name": "ccc" },{ "id": 3, "name": "ddd" },{ "id": 4, "name": "eee" },{ "id": 5, "name": "fff" },{ "id": 6, "name": "ggg" },{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
]
[{ "id": 0, "name": "aaa" },{ "id": 1, "name": "bbb" },{ "id": 2, "name": "ccc" }
]

set

设置JSON数组值

代码

let main = new index();
console.log(main.get()); // []
main.set(json);
console.log(main.get());
main.set(JSON.stringify(json));
console.log(main.get());
main.set("test.json");
console.log(main.get());

运行效果

[]
[{ "id": 0, "name": "aaa" },{ "id": 1, "name": "bbb" },{ "id": 2, "name": "ccc" },{ "id": 3, "name": "ddd" },{ "id": 4, "name": "eee" },{ "id": 5, "name": "fff" },{ "id": 6, "name": "ggg" },{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
]
[{ "id": 0, "name": "aaa" },{ "id": 1, "name": "bbb" },{ "id": 2, "name": "ccc" },{ "id": 3, "name": "ddd" },{ "id": 4, "name": "eee" },{ "id": 5, "name": "fff" },{ "id": 6, "name": "ggg" },{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
]
[{"id": 1,"first_name": "Jeanette","last_name": "Penddreth","email": "jpenddreth0@census.gov","gender": "Female","ip_address": "26.58.193.2","children": [ {"id": 1,"first_name": "a","last_name": "a","email": "a@census.gov","gender": "Female"},{"id": 2,"first_name": "b","last_name": "b","email": "b@census.gov","gender": "Female"}]},{"id": 2,"first_name": "Giavani","last_name": "Frediani","email": "gfrediani1@senate.gov","gender": "Male","ip_address": "229.179.4.212"},{"id": 3,"first_name": "Noell","last_name": "Bea","email": "nbea2@imageshack.us","gender": "Female","ip_address": "180.66.162.255"},{"id": 4,"first_name": "Willard","last_name": "Valek","email": "wvalek3@vk.com","gender": "Male","ip_address": "67.76.188.26"}
]

first

获取第一个值

代码

let main = new index(json);
console.log(main.first());

运行效果

{ "id": 0, "name": "aaa" }

last

获取最后一个值

代码

let main = new index(json);
console.log(main.last());

运行效果

{ "id": 9, "name": "jjj" }

pagination

分页

代码

let main = new index(json);
console.log(main.pagination(2, 3).get());

运行效果

[{ "id": 6, "name": "ggg" },{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" }
]

limit

限制查询

代码

let main = new index(json);
console.log(main.limit(0, 2).get());

运行效果

[ { "id": 0, "name": "aaa" }, { "id": 1, "name": "bbb" } ]

whereAll

查询

代码

let main = new index(json);
console.log(main.whereAll([["name", "bbb"], ["id", "<", 2]]).get());

运行效果

[ { "id": 1, "name": "bbb" } ]

where

查询

代码

let main = new index(json);
console.log(main.where("id", 1).get());
main.clear(); // 清除掉where缓存
console.log(main.where("id", "<", 2).get());
main.clear();
console.log(main.where((item) => item.id > 6).get());

运行效果

[ { "id": 1, "name": "bbb" } ]
[ { "id": 0, "name": "aaa" }, { "id": 1, "name": "bbb" } ]
[{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
]

whereD

查询，默认为==

代码

let main = new index(json);
console.log(main.where("id", 1).get());

运行效果

[ { "id": 1, "name": "bbb" } ]

whereS

查询

代码

let main = new index(json);
console.log(main.where("id", "<", 2).get());

运行效果

[ { "id": 0, "name": "aaa" }, { "id": 1, "name": "bbb" } ]

whereC

查询，回调

代码

let main = new index(json);
console.log(main.where((item) => item.id > 6).get());

运行效果

[{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
]

select

查询单个键名

代码

let main = new index(json);
console.log(main.where("id", 2).select("name").get());

运行效果

ccc

eq

查询指定下标

代码

let main = new index(json);
console.log(main.where("id", "<", 2).eq(1).get());

运行效果

{ "id": 1, "name": "bbb" }

insert

插入数据

代码

let main = new index(json);
main.insert({ "id": 10, "name": "kkk" });
console.log(main.where("id", ">", 8).get());

运行效果

[ { "id": 9, "name": "jjj" }, { "id": 10, "name": "kkk" } ]

insertKey

插入键名

代码

let main = new index(json);
main.insertKey("age", 10);
console.log(main.first());

运行效果

{ "id": 0, "name": "aaa", "age": 10 }

update

修改数据

代码

let main = new index(json);
main.where("id", 1).update("name", "lll");
console.log(main.where("id", 1).get());

运行效果

[ { "id": 1, "name": "lll" } ]

delete

删除数据

代码

let main = new index(json);
let temp = main.where("id", 1).delete();
console.log(temp);

运行效果

[{ "id": 0, "name": "aaa" },{ "id": 2, "name": "ccc" },{ "id": 3, "name": "ddd" },{ "id": 4, "name": "eee" },{ "id": 5, "name": "fff" },{ "id": 6, "name": "ggg" },{ "id": 7, "name": "hhh" },{ "id": 8, "name": "iii" },{ "id": 9, "name": "jjj" }
]

deleteKey

删除键名

代码

let main = new index(json);
main.deleteKey("name");
console.log(main.first());

运行效果

{ "id": 0 }

equal

判断两个json是否相等

代码

let main = new index(json);
let json1 = { "id": 1, "name": "a", "children": [1, 2] };
let json2 = { "id": 1, "name": "a", "children": [1, 2] };
console.log(main.equal(json1, json2));

运行效果

true

orderBy

排序

代码

let main = new index(json);
console.log(main.where("id", "<", 2).orderBy(["name"], "desc").get());

运行效果

[ { "id": 1, "name": "bbb" }, { "id": 0, "name": "aaa" } ]

expor

node导出

代码

let main = new index(json);
main.export("demo");

运行效果

在本地文件夹中创建demo.json文件

unRepeat

去重

代码

let repeats = [{ "id": 1, "name": "a" }, { "id": 2, "name": "b" }, { "id": 1, "name": "a" }];
let main = new index();
console.log(main.unRepeat(repeats, "id"));

运行效果

[ { "id": 1, "name": "a" }, { "id": 2, "name": "b" } ]

连表

初始数据

let student = [{ "学号": 1001, "姓名": "FF", "性别": "女", "籍贯": "山东", "年龄": 18, "成绩级别": "A", "联系电话": 15112, "测试": 1 },{ "学号": 1002, "姓名": "NN", "性别": "女", "籍贯": "河南", "年龄": 19, "成绩级别": "C", "联系电话": 15212, "测试": 2 },{ "学号": 1003, "姓名": "ZZ", "性别": "男", "籍贯": "河南", "年龄": 17, "成绩级别": "B", "联系电话": 15312, "测试": 1 },{ "学号": 1004, "姓名": "JJ", "性别": "男", "籍贯": "湖南", "年龄": 19, "成绩级别": "A", "联系电话": 15412, "测试": 3 },{ "学号": 1005, "姓名": "AA", "性别": "男", "籍贯": "湖南", "年龄": 17, "成绩级别": "B", "联系电话": 15512, "测试": 4 },{ "学号": 1006, "姓名": "HH", "性别": "女", "籍贯": "山东", "年龄": 18, "成绩级别": "B", "联系电话": 15612, "测试": 7 },{ "学号": 1007, "姓名": "YY", "性别": "男", "籍贯": "河南", "年龄": 19, "成绩级别": "A", "联系电话": 15712, "测试": 1 },{ "学号": 1008, "姓名": "KK", "性别": "女", "籍贯": "河南", "年龄": 17, "成绩级别": "C", "联系电话": 15812, "测试": 8 }
];let classes = [{ "学号": 1001, "专业": "计算机", "班级": "计191", "测试": 1 },{ "学号": 1002, "专业": "会计", "班级": "会计191", "测试": 2 },{ "学号": 1003, "专业": "计算机", "班级": "计192", "测试": 3 },{ "学号": 1004, "专业": "英语", "班级": "英语182", "测试": 4 },{ "学号": 1006, "专业": "土木工程", "班级": "土木201", "测试": 6 },{ "学号": 1007, "专业": "软件工程", "班级": "软件221", "测试": 7 },{ "学号": 1009, "专业": "软件工程", "班级": "软件222", "测试": 8 }
];

innerJoin

内连接

代码

let main = new index(student);
main.innerJoin(classes, ["学号", "测试"]);
console.log(main.get());

运行效果

[{"学号": 1001,"姓名": "FF","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "A","联系电话": 15112,"测试": 1,"专业": "计算机","班级": "计191"},{"学号": 1002,"姓名": "NN","性别": "女","籍贯": "河南","年龄": 19,"成绩级别": "C","联系电话": 15212,"测试": 2,"专业": "会计","班级": "会计191"}
]

leftJoin

左连接

代码

let main = new index(student);
main.leftJoin(classes, "学号");
console.log(main.get());

运行效果

[{"学号": 1001,"姓名": "FF","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "A","联系电话": 15112,"测试": 1,"专业": "计算机","班级": "计191"},{"学号": 1002,"姓名": "NN","性别": "女","籍贯": "河南","年龄": 19,"成绩级别": "C","联系电话": 15212,"测试": 2,"专业": "会计","班级": "会计191"},{"学号": 1003,"姓名": "ZZ","性别": "男","籍贯": "河南","年龄": 17,"成绩级别": "B","联系电话": 15312,"测试": 1,"专业": "计算机","班级": "计192"},{"学号": 1004,"姓名": "JJ","性别": "男","籍贯": "湖南","年龄": 19,"成绩级别": "A","联系电话": 15412,"测试": 3,"专业": "英语","班级": "英语182"},{"学号": 1005,"姓名": "AA","性别": "男","籍贯": "湖南","年龄": 17,"成绩级别": "B","联系电话": 15512,"测试": 4,"专业": null,"班级": null},{"学号": 1006,"姓名": "HH","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "B","联系电话": 15612,"测试": 7,"专业": "土木工程","班级": "土木201"},{"学号": 1007,"姓名": "YY","性别": "男","籍贯": "河南","年龄": 19,"成绩级别": "A","联系电话": 15712,"测试": 1,"专业": "软件工程","班级": "软件221"},{"学号": 1008,"姓名": "KK","性别": "女","籍贯": "河南","年龄": 17,"成绩级别": "C","联系电话": 15812,"测试": 8,"专业": null,"班级": null}
]

rightJoin

右连接

代码

let main = new index(student);
main.rightJoin(classes, "学号");
console.log(main.get());

运行效果

[{"学号": 1001,"姓名": "FF","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "A","联系电话": 15112,"测试": 1,"专业": "计算机","班级": "计191"},{"学号": 1002,"姓名": "NN","性别": "女","籍贯": "河南","年龄": 19,"成绩级别": "C","联系电话": 15212,"测试": 2,"专业": "会计","班级": "会计191"},{"学号": 1003,"姓名": "ZZ","性别": "男","籍贯": "河南","年龄": 17,"成绩级别": "B","联系电话": 15312,"测试": 3,"专业": "计算机","班级": "计192"},{"学号": 1004,"姓名": "JJ","性别": "男","籍贯": "湖南","年龄": 19,"成绩级别": "A","联系电话": 15412,"测试": 4,"专业": "英语","班级": "英语182"},{"学号": 1006,"姓名": "HH","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "B","联系电话": 15612,"测试": 6,"专业": "土木工程","班级": "土木201"},{"学号": 1007,"姓名": "YY","性别": "男","籍贯": "河南","年龄": 19,"成绩级别": "A","联系电话": 15712,"测试": 7,"专业": "软件工程","班级": "软件221"},{"学号": 1009,"姓名": null,"性别": null,"籍贯": null,"年龄": null,"成绩级别": null,"联系电话": null,"测试": 8,"专业": "软件工程","班级": "软件222"}
]

fullJoin

完全连接

代码

let main = new index(student);
main.fullJoin(classes, "学号");
console.log(main.get());

运行效果

[{"学号": 1001,"姓名": "FF","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "A","联系电话": 15112,"测试": 1,"专业": "计算机","班级": "计191"},{"学号": 1002,"姓名": "NN","性别": "女","籍贯": "河南","年龄": 19,"成绩级别": "C","联系电话": 15212,"测试": 2,"专业": "会计","班级": "会计191"},{"学号": 1003,"姓名": "ZZ","性别": "男","籍贯": "河南","年龄": 17,"成绩级别": "B","联系电话": 15312,"测试": 1,"专业": "计算机","班级": "计192"},{"学号": 1004,"姓名": "JJ","性别": "男","籍贯": "湖南","年龄": 19,"成绩级别": "A","联系电话": 15412,"测试": 3,"专业": "英语","班级": "英语182"},{"学号": 1005,"姓名": "AA","性别": "男","籍贯": "湖南","年龄": 17,"成绩级别": "B","联系电话": 15512,"测试": 4,"专业": null,"班级": null},{"学号": 1006,"姓名": "HH","性别": "女","籍贯": "山东","年龄": 18,"成绩级别": "B","联系电话": 15612,"测试": 7,"专业": "土木工程","班级": "土木201"},{"学号": 1007,"姓名": "YY","性别": "男","籍贯": "河南","年龄": 19,"成绩级别": "A","联系电话": 15712,"测试": 1,"专业": "软件工程","班级": "软件221"},{"学号": 1008,"姓名": "KK","性别": "女","籍贯": "河南","年龄": 17,"成绩级别": "C","联系电话": 15812,"测试": 8,"专业": null,"班级": null},{"学号": 1009,"姓名": null,"性别": null,"籍贯": null,"年龄": null,"成绩级别": null,"联系电话": null,"测试": 8,"专业": "软件工程","班级": "软件222"}
]

整合

使用test.json文件进行
新增一条数据
都添加一个age字段，默认值为10
在"id"大于2中的age字段设置为18
在"id"为1里的children子元素
- 删除"gender"的字段名
- 删除"id"为2的数据
最后的数据导出为main.json数据

代码

let main = new index("test.json");
main.insert({"id": 5,"first_name": "asdf","last_name": "asdf","email": "asdf@vk.com","gender": "asdf","ip_address": "67.76.188.236"
}).insertKey("age", 10).where("id", ">", 2).update("age", 18).clear();
main.where("id", 1).select("children").deleteKey("gender").where("id", 2).delete();
main.export("main");
main.clear();
console.dir(main.get(), { depth: null });
main.close();

运行效果

[{"id": 1,"first_name": "Jeanette","last_name": "Penddreth","email": "jpenddreth0@census.gov","gender": "Female","ip_address": "26.58.193.2","children": [{"id": 1,"first_name": "a","last_name": "a","email": "a@census.gov"}],"age": 10},{"id": 2,"first_name": "Giavani","last_name": "Frediani","email": "gfrediani1@senate.gov","gender": "Male","ip_address": "229.179.4.212","age": 10},{"id": 3,"first_name": "Noell","last_name": "Bea","email": "nbea2@imageshack.us","gender": "Female","ip_address": "180.66.162.255","age": 18},{"id": 4,"first_name": "Willard","last_name": "Valek","email": "wvalek3@vk.com","gender": "Male","ip_address": "67.76.188.26","age": 18},{"id": 5,"first_name": "asdf","last_name": "asdf","email": "asdf@vk.com","gender": "asdf","ip_address": "67.76.188.236","age": 18}
]

如有问题可以在评论区提出！

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