How to write vee-validate, regular check rules?

use vee-validate "s regular verification rules in vue projects. The backend returns tailZeroCount, and then dynamically generates regular expressions, as follows: 

 regexRule() {
    let tailZeroCount = this.warePublishData.warePublishVO.tailZeroCount ? this.warePublishData.warePublishVO.tailZeroCount : 3
    return /^[0-9]*[0]{`tailZeroCount`}$/
}

<input type="text" v-validate="{
       required: true,
       regex: regexRule
}"/>

but the printed regexRule is still / ^ [0-9] * [0] { tailZeroCount } $/

Vue.js
Mar.02,2021 
let tailZeroCount = this.warePublishData.warePublishVO.tailZeroCount ? this.warePublishData.warePublishVO.tailZeroCount : 3
let regex = new RegExp("^[0-9]*[0]{" + tailZeroCount + "}$");
return regex

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-428feda-54a2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-428feda-54a2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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