Judge whether a word is a palindrome

Palindrome refers to the same words or sentences, in the following exchange position or upside down, producing the end-to-end loop of interest, called a palindrome, also known as the loopback. Like Mamam Redivider.

To determine whether it is a palindrome, it can be converted to an array by the split () method, then reversed by the reverse () method, and finally converted back to the string by the join () method.

<inputtype= "text"ID= "text"placeholder= "Please enter ..."onkeyup= "Test ()"/><DivID= "Output"></Div>
functionTest () {varStr= $('#text'). Val (); STR=Str.split ("'). Reverse (). Join ("'); if($('#text'). Val ()==str) {        $('#output'). HTML ('It's a palindrome .'); }Else{        $('#output'). HTML ('not a palindrome .'); }};

Final effect:

Judge whether a word is a palindrome