原数据

const list = ['999-1234567801','999-1234567802','999-1234567803',
];
const list1 = ['999-1234567899','999-1234567900','999-1234567901',
];

期望数据

'999-1234567801/2/3' //list
'999-1234567899/900/901' //list1

处理代码

// 连续号码处理
export const formatNumber = (ticketNo: string[]): string => {let point = 0;let isTheSame = true;const baseStr = ticketNo[0] || '';for (let i = 0; i < baseStr.length; i++) {const str = baseStr[point];isTheSame = !ticketNo.some((t) => t[point] !== str);if (isTheSame) {point++;} else {break;}}if (point === baseStr.length) {return baseStr;} else {let msg = '';ticketNo.map((t, index) => {if (index === 0) {msg = t;} else {msg = msg + `/${t?.substring(point, t?.length)}`;}});return msg;}
};