编辑代码

const t = 'B0B6G0R6R0R6G9'

/**
 * @param {string} rings
 * @return {number}
 */
var countPoints = function (rings) {
    if (rings.length < 6) return 0
    let r = {}
    for (let i = 0; i < rings.length; i + 2) {
        const curr = rings.substr(i, i + 2)
        const k = curr.substr(0)
        const v = curr.substr(1)
        r[key] = r[key] ? r[key].push(v) : [v]
    }
    console.log(r)
};
countPoints(t)