实现一个五角星打分的功能

star_rat.js

function score0(rate){
    return "★★★★★☆☆☆☆☆".slice(5 - rate, 10 - rate)
}
function score(rate){
    let resultArr = []
    resultArr.push(a.repeat(rate))
    resultArr.push(b.repeat(5 - rate))
    return resultArr.join("")
}

function score2(rate){
    return '☆☆☆☆☆'.replace(new RegExp(`☆{${rate}}`), '★'.repeat(rate))
}

function score3(rate){
    // return '★'.repeat(rate) + '☆'.repeat(5 - rate)
    return `${'★'.repeat(rate)}${'☆'.repeat(5 - rate)}`
}