# JavaScript: Find the first not repeated character

## JavaScript Function: Exercise-23 with Solution

Write a JavaScript function to find the first not repeated character.

Sample arguments : 'abacddbec'
Expected output : 'e'

Pictorial Presentation: Sample Solution: -

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>find the first not repeated character.</title>
<body>

</body>
</html>
```
```

JavaScript Code:

``````function find_FirstNotRepeatedChar(str) {
var arra1 = str.split('');
var result = '';
var ctr = 0;

for (var x = 0; x < arra1.length; x++) {
ctr = 0;

for (var y = 0; y < arra1.length; y++)
{
if (arra1[x] === arra1[y]) {
ctr+= 1;
}
}

if (ctr < 2) {
result = arra1[x];
break;
}
}
return result;
}
console.log(find_FirstNotRepeatedChar('abacddbec'));
```
```

Sample Output:

```e
```

Flowchart: Live Demo:

See the Pen JavaScript - Find the first not repeated character-function-ex- 23 by w3resource (@w3resource) on CodePen.

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## JavaScript: Tips of the Day

Shorten an array using its length property

A great way of shortening an array is by redefining its length property.

```let array = [0, 1, 2, 3, 4, 5, 6, 6, 8, 9]
array.length = 4
// Result: [0, 1, 2, 3]
```

Important to know though is that this is a destructive way of changing the array. This means you lose all the other values that used to be in the array.

Ref: https://bit.ly/2LBj213