Remove occurrences of duplicate words in a string

by

How about something like this?

split the string, get the array, filter it to remove duplicate items, join them back.

var uniqueList=string.split(',').filter(function(item,i,allItems){
    return i==allItems.indexOf(item);
}).join(',');

$('#output').append(uniqueList);

Fiddle

For non supporting browsers you can tackle it by adding this in your js.

See Filter

if (!Array.prototype.filter)
{
  Array.prototype.filter = function(fun /*, thisp*/)
  {
    "use strict";

    if (this == null)
      throw new TypeError();

    var t = Object(this);
    var len = t.length >>> 0;
    if (typeof fun != "function")
      throw new TypeError();

    var res = [];
    var thisp = arguments[1];
    for (var i = 0; i < len; i++)
    {
      if (i in t)
      {
        var val = t[i]; // in case fun mutates this
        if (fun.call(thisp, val, i, t))
          res.push(val);
      }
    }

    return res;
  };
}

More Related Contents:

  1. How to find if an array contains a specific string in JavaScript/jQuery?
  2. Convert javascript array to string
  3. Concat two arrays But concat is not working
  4. Remove array element based on object property
  5. How to get character array from a string?
  6. How to find index of all occurrences of element in array?
  7. How to check if a string contains text from an array of substrings in JavaScript?
  8. How to add an object to an array
  9. How to split a long array into smaller arrays, with JavaScript
  10. Remove duplicate values from JS array [duplicate]
  11. Check if an array is empty or exists
  12. Remove items from array with splice in for loop [duplicate]
  13. Convert simple array into two-dimensional array (matrix)
  14. What is the most efficient way to sort an Html Select’s Options by value, while preserving the currently selected item?
  15. Wrap tags around http text
  16. break array of objects into separate arrays based on a property
  17. How to check whether multiple values exist within an Javascript array
  18. Convert html table to array in javascript
  19. Split a string based on multiple delimiters
  20. How to trim() white spaces from a string?
  21. Insert space before capital letters
  22. jQuery UI autocomplete with item and id
  23. How to check if an array is empty or exists?
  24. console.log(result) prints [object Object]. How do I get result.name? [duplicate]
  25. What is the concept of Array.map?
  26. How to set DOM element as first child?
  27. Sorting an Array of JavaScript Objects a Specific Order (using existing function)
  28. Transform Javascript Array into delimited String
  29. How to flatten array in jQuery?
  30. Find and replace nth occurrence of [bracketed] expression in string

Leave a Comment