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>
<head>
<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>
</head>
<body>
</body>
</html>
JavaScript Code:
function first_last_same(nums)
{
var end = nums.length - 1;
if (nums.length >= 1){
return nums[0] == 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[0] == 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:
See the Pen JavaScript - check whether the first and last elements are equal of a given array of integers length 3 - basic-ex-72 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript program to check whether 1 appears in first or last position of a given array of integers.
Next: Write a JavaScript program to reverse the elements of a given array of integers length 3.
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JavaScript: Tips of the Day
Parse an HTTP Cookie header string and return an object of all cookie name-value pairs
Example:
const parseCookie = str => str .split(';') .map(v => v.split('=')) .reduce((acc, v) => { acc[decodeURIComponent(v[0].trim())] = decodeURIComponent(v[1].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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