题解 | #颜色字符串转换#
颜色字符串转换
https://www.nowcoder.com/practice/80b08802a833419f9c4ccc6e042c1cca
function rgb2hex(sRGB) {
// 填写JavaScript
const reg = /\d+/g
const arr = sRGB.match(reg)
return arr? arr.reduce((pre,cur)=> {
let hex = (cur*1).toString(16)
hex = hex.length > 1 ? hex : '0'+ hex
return pre + hex
},'#') : sRGB
}
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