171-excel-sheet-column-number

DevGod
Vtuber
/** * @param {string} columnTitle * @return {number} */var titleToNumber = function(columnTitle) { let R = columnTitle.length-1; let val = 0; let carry = 1;
while(R>=0){ val += carry*(columnTitle.charCodeAt(R)-64); R += -1; carry *= 26; }
return val;};