javascript reverse word in a sentence code example

Example 1: reverse words in a string javascript

function reverseString(str) {
    return str.split("").reverse().join("");
}
reverseString("hello");

Example 2: reverse words javascript

function reverse (word) {
    word = word.split('.').reverse().join('.')
    return word

}
word = 'i.like.this.program.very.much'
word = 'pqr.mno'
console.log(reverse(word))