30-seconds-of-code
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A collection of useful JavaScript snippets.
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Markdown
Returns `true` if the given string is a palindrome, `false` otherwise.
Convert string `String.toLowerCase()` and use `String.replace()` to remove non-alphanumeric characters from it.
Then, use the spread operator (`...`) to split string into individual characters, `Array.reverse()`, `String.join('')` and compare to the original, unreversed string, after converting it `String.tolowerCase()`.
```js
const palindrome = str => {
const s = str.toLowerCase().replace(/[\W_]/g, '');
return s === [...s].reverse().join('');
};
```
```js
palindrome('taco cat'); // true
```