Answer to Question #166759 in Java | JSP | JSF for Chandra sena reddy

Question

Filter Unique Characters

Given a string

myString as an input, write a JS program to find the unique characters from the myString.

Quick Tip

You can use the array method indexOf().

Input

• The input will be a single line containing a string myString

Output

• The output should be a single line containing an array of unique characters

Sample Input 1

Was it a cat I saw?

Sample Output 1

[

'W', 'a', 's', ' ',

'i', 't', 'c', 'I',

'w', '?'

]

Sample Input 2

I did, did I?

Sample Output 2

[ 'I', ' ', 'd', 'i', ',', '?' ]

Answer 1

 var myString = "Was it a cat I saw?"; // initialize myString
 var unique = []; // create an array to store unique characters
 var count = 0; // initialize count to zero
 var str =""; // String to make string of unique characters
 for (var x = 0; x < myString.length; x++) // iterate loop 
 {
    if(str.indexOf(myString.charAt(x))==-1) // check if character is unique
    {
        str += myString[x]; // add it to the unique string
        unique[count] = myString[x]; // add character to unique array
        count++; // increase count by 1
    }
 }
 print (unique.toString()); // display content of an array