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rearrange the keys and values from nest json

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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

0

I have this json

$ cat a.json

 "students": [
 
 "name": "jack",
 "id": "0012"
 ,
 
 "name": "tom",
 "id": "0023"
 
 ]

I'd like to generate two variables, such as

names = ["jack", "tom"];
ids=["0012", "0023"];

They are one to one mapped between names and ids

I read this, but it only works on maps, but my json is nested JSON. how can I get the result?

// this doesn't work with my sample.
let keys = Array.from( myMap.keys() )

node.js

share|improve this question

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

add a comment | 

0

I have this json

$ cat a.json

 "students": [
 
 "name": "jack",
 "id": "0012"
 ,
 
 "name": "tom",
 "id": "0023"
 
 ]

I'd like to generate two variables, such as

names = ["jack", "tom"];
ids=["0012", "0023"];

They are one to one mapped between names and ids

I read this, but it only works on maps, but my json is nested JSON. how can I get the result?

// this doesn't work with my sample.
let keys = Array.from( myMap.keys() )

node.js

share|improve this question

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

add a comment | 

I have this json

$ cat a.json

 "students": [
 
 "name": "jack",
 "id": "0012"
 ,
 
 "name": "tom",
 "id": "0023"
 
 ]

I'd like to generate two variables, such as

names = ["jack", "tom"];
ids=["0012", "0023"];

They are one to one mapped between names and ids

I read this, but it only works on maps, but my json is nested JSON. how can I get the result?

// this doesn't work with my sample.
let keys = Array.from( myMap.keys() )

node.js

share|improve this question

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

$ cat a.json

 "students": [
 
 "name": "jack",
 "id": "0012"
 ,
 
 "name": "tom",
 "id": "0023"
 
 ]

names = ["jack", "tom"];
ids=["0012", "0023"];

// this doesn't work with my sample.
let keys = Array.from( myMap.keys() )

share|improve this question

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

share|improve this question

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

asked Mar 26 at 1:30

BillBill

32211 silver badge1515 bronze badges

1 Answer
1

active

oldest

votes

1

I'm assuming you have same nesting level. Then this solution will work. If you have different nesting levels to find name and id let me know I will update the code.

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

share|improve this answer

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks a lot, it is really helpful, but when output the value, I lost the double quota [jack,tom], which I want to get ["jack", "tom"]
  
  – Bill
  Mar 26 at 3:13
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  never mind, I fixed with JSON.stringify()
  
  – Bill
  Mar 26 at 3:18
  

  
  
  
  

add a comment | 

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1

I'm assuming you have same nesting level. Then this solution will work. If you have different nesting levels to find name and id let me know I will update the code.

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

share|improve this answer

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks a lot, it is really helpful, but when output the value, I lost the double quota [jack,tom], which I want to get ["jack", "tom"]
  
  – Bill
  Mar 26 at 3:13
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  never mind, I fixed with JSON.stringify()
  
  – Bill
  Mar 26 at 3:18
  

  
  
  
  

add a comment | 

1

I'm assuming you have same nesting level. Then this solution will work. If you have different nesting levels to find name and id let me know I will update the code.

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

share|improve this answer

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks a lot, it is really helpful, but when output the value, I lost the double quota [jack,tom], which I want to get ["jack", "tom"]
  
  – Bill
  Mar 26 at 3:13
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  never mind, I fixed with JSON.stringify()
  
  – Bill
  Mar 26 at 3:18
  

  
  
  
  

add a comment | 

I'm assuming you have same nesting level. Then this solution will work. If you have different nesting levels to find name and id let me know I will update the code.

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

share|improve this answer

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

let name=[];
let ids=[];
let data = 
 "students": [
 
 "name": "jack",
 "id": "0012"
 , 
 "name": "tom",
 "id": "0023"
 
 ]
;

data.students.map((val, key, ref) => 
 name.push(val.name);
 ids.push(val.id);
);

document.write(`Name: [$name] ids: [$ids]`);

share|improve this answer

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

edited Mar 26 at 2:23

Rastalamm

87511 gold badge1010 silver badges2525 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges

answered Mar 26 at 2:19

Azeem AslamAzeem Aslam

47733 silver badges1111 bronze badges