Remove duplicate characters from string

Question

I have to make a function in JavaScript that removes all duplicated letters in a string. So far I\'ve been able to do this: If I have the word \"anaconda\" it shows me as a

Answer 1

Method 1 : one Simple way with just includes JS- function

var data = 'sssssffffdffffdffffddfffffff';

    var ary = [];
    var item = '';
    for (const index in data) {
      if (!ary.includes(data[index])) {
        ary[index] = data[index];
        item += data[index];
      }
    }
    console.log(item);

Method 2 : Yes we can make this possible without using JavaScript function :

var name = 'sssssffffdffffdffffddfffffff';

let i = 0;
let newarry = [];

for (let singlestr of name) {
    newarry[i] = singlestr;
    i++;
}


// now we have new Array and length of string
length = i;

function getLocation(recArray, item, arrayLength) {

    firstLaction = -1;
    for (let i = 0; i < arrayLength; i++) {

        if (recArray[i] === item) {
            firstLaction = i;
            break;
        }

    }

    return firstLaction;

}


let finalString = '';
for (let b = 0; b < length; b++) {
   
    const result = getLocation(newarry, newarry[b], length);
    if (result === b) {
        finalString += newarry[b];
    }

}
console.log(finalString); // sdf