lindsyt

ES6 根据字母表a-z，将字符数组归类排序 export const sortByAlphabet = (arr, key) => { if (!String.prototype.localeCompare) { console.error('浏览器不支持排序!') return } let letters = '*abcdefghjklmnopqrstwxyz'.split('') let zh = '阿八嚓哒妸发旮哈讥咔垃痳拏噢妑七呥扨它穵夕丫帀'.split('') let segs = [] let curr let isZhCn = /[\u4e00-\u9fa5]/ letters.forEach((letter, i) => { curr = {groupName: letter, children: []} arr.forEach((hanzi) => { let mingzi = key === undefined ? hanzi : hanzi[key] // 中文为首 if (isZhCn.test(mingzi[0])) { let qianHz = zh[i - 1] let xianHz = zh[i] if (!qianHz || (qianHz.localeCompare(mingzi) <= 0 && mingzi.localeCompare(xianHz) === -1)) { curr.children.push(hanzi) } } else { // 英文为首 let qianHz = letters[i] let xianHz = letters[i + 1] if (!qianHz || (qianHz.localeCompare(mingzi) <= 0 && mingzi.localeCompare(xianHz) === -1)) { curr.children.push(hanzi) } } }) if (curr.children.length > 0) { curr.children.sort((a, b) => { if (key !== undefined) return a[key].localeCompare(b[key]) return a.localeCompare(b) }) } if (curr.groupName !== '*') segs.push(curr) }) return segs }