How to use JS to randomly generate serial numbers based on the current time

This time I will show you how to operate JS to randomly generate a serial number based on the current time, and how to operate JS to randomly generate a serial number based on the current time. What are the precautions?. Here is a practical case. Let’s take a look. take a look.

Since it is based on the current time, our first step is to obtain the current time and then splice a random number. This will achieve a random generation of a serial number. Note that each serial number is required to be unique. , during the submission process after generation, it is still necessary to verify whether the current serial number exists. If it exists, the user needs to be prompted or generated again.

//   根据当前时间和随机数生成流水号
   randomNumber() {
    const now = new Date()
    let month = now.getMonth() + 1
    let day = now.getDate()
    let hour = now.getHours()
    let minutes = now.getMinutes()
    let seconds = now.getSeconds()
    month = this.setTimeDateFmt(month)
    hour = this.setTimeDateFmt(hour)
    minutes = this.setTimeDateFmt(minutes)
    seconds = this.setTimeDateFmt(seconds)
    return now.getFullYear().toString() + month.toString() + day + hour + minutes + seconds + (Math.round(Math.random() * 89 + 100)).toString()
   }

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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