Remove duplicates in an object array Javascript

Plain javascript (ES2015), using Set

const list = [{ x: 1, y: 2 }, { x: 3, y: 4 }, { x: 5, y: 6 }, { x: 1, y: 2 }];

const uniq = new Set(list.map(e => JSON.stringify(e)));

const res = Array.from(uniq).map(e => JSON.parse(e));

document.write(JSON.stringify(res));

Related Contents:

  1. Most efficient method to groupby on an array of objects
  2. JavaScript merging objects by id
  3. Add property to an array of objects
  4. Comparing two arrays of objects, and exclude the elements who match values into new array in JS
  5. Convert array of strings into an array of objects
  6. Javascript group objects by property [closed]
  7. break array of objects into separate arrays based on a property
  8. Update if exists or add new element to array of objects – elegant way in javascript + lodash
  9. Better way to sum a property value in an array
  10. Group array of object nesting some of the keys with specific names
  11. Convert array to JSON
  12. How to add same elements to javascript array n times
  13. Copy array items into another array
  14. How to add an object to an array
  15. How to split a long array into smaller arrays, with JavaScript
  16. Merge JavaScript objects in array with same key
  17. Check if an element is present in an array [duplicate]
  18. Sort mixed alpha/numeric array
  19. Find and remove objects in an array based on a key value in JavaScript
  20. Comparing Arrays of Objects in JavaScript
  21. Javascript sort function. Sort by First then by Second
  22. How to compare two objects and get key-value pairs of their differences?
  23. Compare JavaScript Array of Objects to Get Min / Max
  24. sort Javascript array by two numeric fields
  25. How to know if two arrays have the same values
  26. Is reading the `length` property of an array really that expensive an operation in JavaScript?
  27. JavaScript runtime complexity of Array functions
  28. Difference and intersection of two arrays containing objects
  29. Array.includes() to find object in array
  30. Big O of JavaScript arrays
  31. Javascript Set vs. Array performance
  32. Recursively filter array of objects
  33. How to find the array index with a value?
  34. Reverse array in Javascript without mutating original array
  35. JavaScript Loops: for…in vs for
  36. Check if array contains all elements of another array
  37. How might I extract the property values of a JavaScript object into an array?
  38. How can I reverse an array in JavaScript without using libraries?
  39. Javascript: filter array of objects by array of strings
  40. How to check if a string array contains one string in JavaScript? [duplicate]
  41. Convert ES6 Iterable to Array
  42. Do objects pushed into an array in javascript deep or shallow copy?
  43. How do you search an array for a substring match?
  44. Why is ‘for(var item in list)’ with arrays considered bad practice in JavaScript?
  45. How to store a byte array in Javascript
  46. How to merge each object within arrays by index?
  47. Javascript – remove an array item by value [duplicate]
  48. Javascript recursive array flattening
  49. How to convert array of key–value objects to array of objects with a single property?
  50. Two arrays, where items in array x can be in array y but not vice versa, test all permutations

Leave a Comment