Implement isPalindrome in JS

To implement isPalindrome function we can achieve it by implementing another helper function reverseStr().

function reverseStr(str) {
	return str.split('').reverse().join('')
}

• split('') - will separate every char to array element
• reverse() - is a method on arrays that reverses the order of the elements
• join('') - will join array elements to string

And now we can use it for our isPalindrome()

function isPalindrome(str) {
	return str === reverseStr(str)
}