Remove duplicate strings Javascript

remove_duplicates.js

function removeDuplicate(str) {
  arr = []
  prev_value = ''
  
  splitted_str = str.split(' ')
  splitted_str.forEach((s) => {
    console.log("prev value", prev_value)
    console.log("s value", s)
    if(s !== prev_value) {
      arr.push(s);
      prev_value = s
    }else{
      return;
    }
  })
  
  console.log(arr.join(' '))
}


// Use case 1: 
"This is a test string string"
// Use Case 2:
"This This is a test string"
// Use case 3:
"This is is a a test test string"
// Use case 3:
"This is is a test string and it is a good string"

// We can make solution look fancier :) by using Set data structure from JS to remove the duplicates.