js：求一个正则？

Question

const tableList = [
  "account.t_account",
  "account.t_account_ext",
  "account.t_sub_account",
  "account.account.t_sub_account"，
   "t_sub_accountok"
]

const databaseList = [
  "account"
]

js：求一个正则，例如上述例子， tableList 处理之后，可以得到

[
  "t_account",
  "t_account_ext",
  "t_sub_account",
  "t_sub_account",
  "t_sub_accountok"
]

Answer 1

感觉不需要借助正则啊，直接用 filter 加上 split 就可以满足需求了呀？

const resultList = tableList
    .filter(value => databaseList.some(key => value.includes(key))) // 过滤匹配项目
    .map(value => value.split('.').pop()) // 收集最后一项属性
// Array(5) [ "t_account", "t_account_ext", "t_sub_account", "t_sub_account", "t_sub_accountok" ]

Answer 2

const tableList = [
  "account.t_account",
  "account.t_account_ext",
  "account.t_sub_account",
  "account.account.t_sub_account",
  "t_sub_accountok"
];

const databaseList = [
  "account"
];

const regex = new RegExp(`^(${databaseList.join('|')})\.`);

const result = tableList.map(table => table.replace(regex, ''));

console.log(result);

Answer 3

tableList.map(string=>{
    const matchResult = string.match(/(.*)(^|\.)(\w+$)/)
    return matchResult[(matchResult?.length ?? 0) - 1] ?? ''
})