 # JavaScript: Check whether the first and last elements are equal of a given array of integers length 3

## JavaScript Basic: Exercise-72 with Solution

Write a JavaScript program to check whether the first and last elements are equal of a given array of integers length 3.

Pictorial Presentation: Sample Solution:

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JavaScript program to check whether the first and last elements are equal of a given array of integers length 3</title>
<body>

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

JavaScript Code:

``````function first_last_same(nums)
{
var end = nums.length - 1;
if (nums.length >= 1){
return nums == nums[end];
} else {return false;}
}

console.log(first_last_same([10, 20, 30]));
console.log(first_last_same([10, 20, 30, 10]));
console.log(first_last_same([20, 20, 20]));
```
```

Sample Output:

```false
true
true
```

Flowchart: ES6 Version:

``````function first_last_same(nums)
{
const end = nums.length - 1;
if (nums.length >= 1){
return nums == nums[end];
} else {return false;}
}

console.log(first_last_same([10, 20, 30]));
console.log(first_last_same([10, 20, 30, 10]));
console.log(first_last_same([20, 20, 20]));
``````

Live Demo:

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## JavaScript: Tips of the Day

Classes/function constructors

```class Person {
constructor() {
this.name = 'Owen';
}
}

Person = class AnotherPerson {
constructor() {
this.name = 'Eddie';
}
};

const member = new Person();
console.log(member.name);
```

We can set classes equal to other classes/function constructors. In this case, we set Person equal to AnotherPerson. The name on this constructor is Eddie, so the name property on the new Person instance member is "Eddie".

Ref: https://bit.ly/3jFRBje