2211-count-collisions-on-a-road

DevGod

Elf Vtuber

Caution

DevGod needs to write an editorial for this problem!

js

/**
 * @param {string} directions
 * @return {number}
 */
var countCollisions = function(directions) {
    return directions.replace(/^L+/,'').replace(/R+$/,'').replaceAll("S",'').length;
};