# 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 the same in a given array of integers of 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

Example:

```const parseCookie = str =>
str
.split(';')
.map(v => v.split('='))
.reduce((acc, v) => {
acc[decodeURIComponent(v.trim())] = decodeURIComponent(v.trim());
return acc;
}, {});
console.log(parseCookie('foo=bar; equation=E%3Dmc%5E2')); // { foo: 'bar', equation: 'E=mc^2' }
```

Output:

```[object Object] {
equation: "E=mc^2",
foo: "bar"
}
```

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