Assumed that is the JSON structure:
var myData = [
{
"id": 68,
"country": "US",
},
{
"id": 82,
"country": "PL",
},
{
"id": 83,
"country": "US",
}
];
I want to get all items, where country == US
Following try does not work:
var myResult = _.where (myData, {'country': 'US'});
I get an empty result > myResult []
What is the mistake?
EDIT: Sorry, the use of lodash and underscore together was the problem !
I never used underscore.js before, but I have tried your code and it works totally.
Please make sure that you are importing the library.
I have used the next code in the body tag of an empty HTML file:
<script src="http://underscorejs.org/underscore-min.js"></script>
<script>
var myData = [
{
"id": 68,
"country": "US",
},
{
"id": 82,
"country": "PL",
},
{
"id": 83,
"country": "US",
}
];
var myResult = _.where (myData, {'country': 'US'});
console.log(myResult);
</script>
And the result is:
Related
Here we are having two JSON called 1.contacts and 2.workers contacts json is having id called serviceId is nothing but id of workers. when i try to display contacts i want to display workers relevant to that contacts. Here is the stackblits DEMO
Here i have updated stackblitz using sample your data as Array.
https://stackblitz.com/edit/angular-movie-read-load-json-sample-eg-ujzzx1
Code:-
let finalResult:any[]=[];
for(let contact of this.contacts){
if(contact.serviceId){
finalResult.push(this.workers.filter(o=>o.id == contact.serviceId));
}
}
console.log("finalResult",finalResult);
You can gather the IDs from the contacts IDs in a map by using map then reduce. After that you iterate over your workers and check in the previously generated map if their serviceId is one of the map's keys.
It looks like this
const contacts = [{
"name": "Jhon Doe",
"gender": "Male",
"serviceId": "e39f9302-77b3-4c52-a858-adb67651ce86",
},
{
"name": "Peter Parker",
"gender": "Male",
"serviceId": "e39f9302-77b3-4c52-a858-adb67651ce86",
},
{
"name": "Mark Wood",
"gender": "Male",
"serviceId": "38688c41-8fda-41d7-b0f5-c37dce3f5374",
},
{
"name": "Mary Jane",
"gender": "Female",
"serviceId": "38688c41-8fda-41d7-b0f5-c37dce3f5374",
}
];
const workers = [
{
"id": "e39f9302-77b3-4c52-a858-adb67651ce86",
"name": "Alfy Odhams"
},
{
"id": "38688c41-8fda-41d7-b0f5-c37dce3f5374",
"name": "Allsun Suttle"
},
{
"id": "ed780d15-428b-4bcd-8a91-bacae8b0b72e",
"name": "Alvinia Ettritch"
},
{
"id": "40665c50-ff74-4e81-b968-e127bdf1fe28",
"name": "Ambrosi Lindenstrauss"
}
];
const contactsIDs = contacts.map(c => c.serviceId).reduce((acc, curr) => {
acc[curr] = true;
return acc;
}, {});
const filteredWorkers = workers.filter(w => w.id in contactsIDs);
console.log(filteredWorkers);
I have a nested JSON returned from an API that I am hitting using a GET request, in POSTMAN chrome app. My JSON looks like this.
{
"resultset": {
"violations": {
"hpd": [
{
"0": {
"ViolationID": "110971",
"BuildingID": "775548",
"RegistrationID": "500590",
"Boro": "STATEN ISLAND",
"HouseNumber": "275",
"LowHouseNumber": "275",
"HighHouseNumber": "275",
"StreetName": "RICHMOND AVENUE",
"StreetCode": "44750",
"Zip": "10302",
"Apartment": "",
"Story": "All Stories ",
"Block": "1036",
"Lot": "1",
"Class": "A",
"InspectionDate": "1997-04-11",
"OriginalCertifyByDate": "1997-08-15",
"OriginalCorrectByDate": "1997-08-08",
"NewCertifyByDate": "",
"NewCorrectByDate": "",
"CertifiedDate": "",
"OrderNumber": "772",
"NOVID": "3370",
"NOVDescription": "§ 27-2098 ADM CODE FILE WITH THIS DEPARTMENT A REGISTRATION STATEMENT FOR BUILDING. ",
"NOVIssuedDate": "1997-04-22",
"CurrentStatus": "VIOLATION CLOSED",
"CurrentStatusDate": "2015-03-10"
},
"count": "1"
}
]
}
},
"count": "1",
"total_page": 1,
"current_page": 1,
"limit": [
"0",
"1000"
],
"status": "success",
"error_code": "",
"message": ""
}
I am trying to test whether my response body has "ViolationID":"110971".
I tried the below code in postman:
var jsonData =JSON.parse(responseBody);
tests["Getting Violation Id"] = jsonData.resultset.violations.hpd[0].ViolationID === 110971;
Two issues I noticed in the provided data. The following suggestions might help you:
Add missing closing braces at the end.
Add missing 0 in the index like this: resultset.violations.hpd[0].0.ViolationID
If the hpd array always contains only 1 member, the test might be pretty straightforward:
pm.test('Body contains ViolationID', () => {
const jsonBody = pm.response.json();
const violationId = jsonBody.resultset.violations.hpd[0]["0"].ViolationID;
pm.expect(parseInt(violationId)).to.eql(110971);
})
However, if hpd array might contain more than one member, it gets a bit trickier. I would suggest mapping only ViolationID keys from nested objects:
pm.test('Body contains ViolationID', () => {
const jsonBody = pm.response.json();
const violationIds = jsonBody.resultset.violations.hpd.map(hpd => hpd["0"].ViolationID);
pm.expect(violationIds).to.contain('110971');
})
I am using following NodeJs code to get the JsonObject:
cdb.getMulti(['emp1','emp2'],null, function(err, rows) {
var resp = {};
for(index in rows){
resp[index] = rows[index];
}
res.send(resp);
});
Getting output :
{
"emp1": {
"cas": {
"0": 637861888,
"1": 967242753
},
"flags": 0,
"value": {
"eid": "10",
"ename": "ameen",
"gender": "male",
"designation": "manager",
"country": "Singapur",
"reportee": "Suresh",
"salary": 50000,
"picture": "ameen.jpg"
}
},
"emp2": {
"cas": {
"0": 721747968,
"1": 430939000
},
"flags": 0,
"value": {
"eid": "2",
"ename": "shanmugapriya",
"gender": "female",
"designation": "programmer",
"country": "England",
"reportee": "shruti",
"salary": 14250,
"picture": "priya.jpg"
}
}
}
What I want to do is, I want to display only value key. Can anybody help me how to do this.
Thanks in advance.
Do you mean you want to display only value and key? If so the code below will put only value into the result
cdb.getMulti(['emp1','emp2'],null, function(err, rows) {
var resp = {};
for(index in rows){
resp[index] = rows[index].value;
}
res.send(resp);
});
The result response will be
{
"emp1":{
"eid":"10",
"ename":"ameen",
"gender":"male",
"designation":"manager",
"country":"Singapur",
"reportee":"Suresh",
"salary":50000,
"picture":"ameen.jpg"
},
"emp2":{
"eid":"2",
"ename":"shanmugapriya",
"gender":"female",
"designation":"programmer",
"country":"England",
"reportee":"shruti",
"salary":14250,
"picture":"priya.jpg"
}
}
UPDATE: Your question was really ambiguous. I think you would need to use Couchbase Views here. Docs http://docs.couchbase.com/couchbase-sdk-node-1.2/#querying-a-view. Assuming that you will build the view _design/employees/_view/all with the following map function:
function(doc, meta) {
emit(meta.id, doc);
}
Your node.js code will look like this
var view = bucket.view('employees', 'all');
view.query(function(err, results) {
res.send(results);
});
This is the json object I am working with
{
"name": "John Smith",
"age": 32,
"employed": true,
"address": {
"street": "701 First Ave.",
"city": "Sunnyvale, CA 95125",
"country": "United States"
},
"children": [
{
"name": "Richard",
"age": 7
},
{
"name": "Susan",
"age": 4
},
{
"name": "James",
"age": 3
}
]
}
I want this as another key-value pair :
"collegeId": {
"eventno": "6062",
"eventdesc": "abc"
};
I tried concat but that gave me the result with || symbol and I cdnt iterate. I used spilt but that removes only commas.
concattedjson = JSON.stringify(JSON.parse(json1).concat(JSON.parse(json2)));
How do I add a key pair value to an existing json object ?
I am working in javascript.
This is the easiest way and it's working to me.
var testJson = {
"name": "John Smith",
"age": 32,
"employed": true,
"address": {
"street": "701 First Ave.",
"city": "Sunnyvale, CA 95125",
"country": "United States"
},
"children": [
{
"name": "Richard",
"age": 7
},
{
"name": "Susan",
"age": 4
},
{
"name": "James",
"age": 3
}
]
};
testJson.collegeId = {"eventno": "6062","eventdesc": "abc"};
Just convert the JSON string to an object using JSON.parse() and then add the property. If you need it back into a string, do JSON.stringify().
BTW, there's no such thing as a JSON object. There are objects, and there are JSON strings that represent those objects.
You need to make an object at reference "collegeId", and then for that object, make two more key value pairs there like this:
var concattedjson = JSON.parse(json1);
concattedjson["collegeId"] = {};
concattedjson["collegeId"]["eventno"] = "6062";
concattedjson["collegeId"]["eventdesc"] = "abc";
Assuming that concattedjson is your json object. If you only have a string representation you will need to parse it first before you extend it.
Edit
demo for those who think this will not work.
const newTestJson = JSON.parse(JSON.stringify(testJson));
newTestJson.collegeId = {"eventno": "6062","eventdesc": "abc"};
testJson = newTestJson;
I'd like to be able to search the following JSON object for objects containing the key 'location' then get in return an array or json object with the 'name' of the person plus the value of location for that person.
Sample return:
var matchesFound = [{Tom Brady, New York}, {Donald Steven,Los Angeles}];
var fbData0 = {
"data": [
{
"id": "X999_Y999",
"location": "New York",
"from": {
"name": "Tom Brady", "id": "X12"
},
"message": "Looking forward to 2010!",
"actions": [
{
"name": "Comment",
"link": "http://www.facebook.com/X999/posts/Y999"
},
{
"name": "Like",
"link": "http://www.facebook.com/X999/posts/Y999"
}
],
"type": "status",
"created_time": "2010-08-02T21:27:44+0000",
"updated_time": "2010-08-02T21:27:44+0000"
},
{
"id": "X998_Y998",
"location": "Los Angeles",
"from": {
"name": "Donald Steven", "id": "X18"
},
"message": "Where's my contract?",
"actions": [
{
"name": "Comment",
"link": "http://www.facebook.com/X998/posts/Y998"
},
{
"name": "Like",
"link": "http://www.facebook.com/X998/posts/Y998"
}
],
"type": "status",
"created_time": "2010-08-02T21:27:44+0000",
"updated_time": "2010-08-02T21:27:44+0000"
}
]
};
#vsiege - you can use this javascript lib (http://www.defiantjs.com/) to search your JSON structure.
var fbData0 = {
...
},
res = JSON.search( fbData0, '//*[./location and ./from/name]' ),
str = '';
for (var i=0; i<res.length; i++) {
str += res[i].location +': '+ res[i].from.name +'<br/>';
}
document.getElementById('output').innerHTML = str;
Here is a working fiddle;
http://jsfiddle.net/hbi99/XhRLP/
DefiantJS extends the global object JSON with the method "search" and makes it possible to query JSON with XPath expressions (XPath is standardised query language). The method returns an array with the matches (empty array if none were found).
You can test XPath expressions by pasting your JSON here:
http://www.defiantjs.com/#xpath_evaluator