JavaScript how to identify duplicate value and get the list of count from unique value from JSON using javascript identify duplicate values in excel,identify duplicate values in r,

Please find my JSON below: I want to identify unique user and get the corresponding unique users value count. For Example:

userID: user1 has 3 records and I want to form the JSON like below:

Expected Result JSON:

[ {
  "userId" : "user1",
  "success" : 1,
  "error" : 0,
  "cancel" : 0,
  "visit" : 3,
  "enroll" : 2,
  "uninstall" : 0
}]

user1 has 1 SUCCESS , 2 ENROLLED and 3** VISITED** and remaining values are null so we have to count as 0.

Same way we have to do for remaining users also.

Can you someone help how i can achieve this using javascript/jquery.

Main JSON:

[ {
  "userId" : "user1",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
}, {
  "userId" : "user1",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
}, {
  "userId" : "user1",
  "success" : "SUCCESS",
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : null,
  "uninstall" : null
}, {
  "userId" : "user2",
  "success" : "SUCCESS",
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : null,
  "uninstall" : null
}, {
  "userId" : "user2",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
}, {
  "userId" : "user2",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
}, {
  "userId" : "user2",
  "success" : "SUCCESS",
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : null,
  "uninstall" : null
}, {
  "userId" : "user3",
  "success" : "SUCCESS",
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : null,
  "uninstall" : null
}, {
  "userId" : "user3",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
}, {
  "userId" : "user4",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
}, {
  "userId" : "user4",
  "success" : null,
  "error" : null,
  "cancel" : "CANCELLED",
  "visit" : "VISITED",
  "enroll" : null,
  "uninstall" : null
}, {
  "userId" : "user4",
  "success" : null,
  "error" : null,
  "cancel" : "CANCELLED",
  "visit" : "VISITED",
  "enroll" : null,
  "uninstall" : null
}, {
  "userId" : "user4",
  "success" : null,
  "error" : null,
  "cancel" : null,
  "visit" : "VISITED",
  "enroll" : "ENROLLED",
  "uninstall" : null
} ]
Answer:1

I'm working in a React.js project which I need to import some JavaScript in others, and some others I have to export it. For example I have A.js which needs some library: var EventEmitter = require('...

I'm working in a React.js project which I need to import some JavaScript in others, and some others I have to export it. For example I have A.js which needs some library: var EventEmitter = require('...

  1. import export modules javascript
  2. import export modules
  3. import export modules js
  4. import export modules angular
  5. import export module es6
  6. import export module typescript
  7. import-export module nodejs
  8. import export module python
  9. import_export module django
  10. import export module opencart
  11. import export module prestashop
  12. import export module vba
  13. import export module drupal 7

I need to get enum values of field in schema I have schema: let adminSchema = new Schema({ login: { type: String, unique: true, required: true, minlength: 5, maxlength: 300 }, ...

I need to get enum values of field in schema I have schema: let adminSchema = new Schema({ login: { type: String, unique: true, required: true, minlength: 5, maxlength: 300 }, ...

I have a dot net page that shows/hides panels. when I set compatibility view "display all websites in Compatibility View" the Last panels dynamically generated link does not display but it does exist....

I have a dot net page that shows/hides panels. when I set compatibility view "display all websites in Compatibility View" the Last panels dynamically generated link does not display but it does exist....

I have been learning basic javascript functionality by using jQuery but now I am interested in learning how to perform the same actions with plain javascript. I have looked for clear answers on this ...

I have been learning basic javascript functionality by using jQuery but now I am interested in learning how to perform the same actions with plain javascript. I have looked for clear answers on this ...

  1. select parent element css
  2. select parent element javascript
  3. select parent element jquery
  4. select parent element xpath
  5. select parent element sass
  6. select parent element js
  7. select parent element using css
  8. select parent element selenium
  9. select parent element using javascript
  10. select parent element from child css
  11. select parent element
  12. select parent element scss
  13. select parent element css3
  14. select parent element with class
  15. select parent element angular
  16. select parent element using jquery
  17. select parent element html
  18. select parent element from iframe
  19. select parent element of class css
  20. select parent element angularjs