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前端项目实战131-数组优先排序和次排序

zhongjh 2022-10-29 阅读 162
前端开发

function sortData(list) {
let result = []
const colorGroup = {}
for (const item of list) {
if (!colorGroup[item.color]) {
colorGroup[item.color] = []
}
colorGroup[item.color].push(item)
}

const colorIds = []
for (const colorId in colorGroup) {
colorIds.push(colorId)
colorGroup[colorId] = colorGroup[colorId].sort((a, b) => a.size - b.size)
}

const sortColorIds = colorIds.sort((a, b) => b - a)
for (const colorId of sortColorIds) { result = [...result, ...colorGroup[colorId]] }

return result
}



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