题解 | #将字符串转换为驼峰格式#
https://www.nowcoder.com/practice/2ded24e34ec34325a62d42d0c8479bae
如有最优解，欢迎讨论
function cssStyle2DomStyle(sName) {
let arr = sName.split('-').filter(str => str !== '')
if(arr.length < 2) return sName
return arr.reduce((preName, currName) => preName += currName.charAt(0).toUpperCase() + currName.substring(1))
}
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