无法使用 node-cron 在 javascript 中安排任务

Question

所以我建立了一个网站，我试图在该网站上运行一个脚本来安排一个任务在每晚 12 点运行。因为我不能使用

require()

，因为我正在运行一个网络服务器，我正在使用browserify来使用node-cron任务。

我有

data_retrieve.js

，我正试图在我的 HTML 中实现它：

class RunCron {
    
    constructor() {
        
        var cron = require('node-cron');
        
        cron.schedule('0 0 * * *', () => {
            
            $.ajax({
                  type: "POST",
                  url: "/main.py",
                  data: { param: text}
                }).done(function( o ) {
                   console.log("Done running py!");
                });
        });
        
        //const cron = require('node-cron');

    }
    
}

var r = new RunCron();

然后我有

bundle.js

正在生成，我每次都收到以下错误：

Uncaught TypeError: process.hrtime is not a function
at Scheduler.start (bundle.js:1791:33)
at new ScheduledTask (bundle.js:1749:29)
at createTask (bundle.js:1564:12)
at Object.schedule (bundle.js:1553:18)
at new RunCron (bundle.js:1229:8)
at 5.node-cron (bundle.js:1246:9)
at o (bundle.js:1:633)
at r (bundle.js:1:799)
at bundle.js:1:828
at bundle.js:1:318

跟随错误到

(bundle.js:1791:33)

：

1780 - 1821 行：

class Scheduler extends EventEmitter{
constructor(pattern, timezone, autorecover){
    super();
    this.timeMatcher = new TimeMatcher(pattern, timezone);
    this.autorecover = autorecover;
}

start(){
    // clear timeout if exists
    this.stop();

    let lastCheck = process.hrtime();
    let lastExecution = this.timeMatcher.apply(new Date());

    const matchTime = () => {
        const delay = 1000;
        const elapsedTime = process.hrtime(lastCheck);
        const elapsedMs = (elapsedTime[0] * 1e9 + elapsedTime[1]) / 1e6;
        const missedExecutions = Math.floor(elapsedMs / 1000);
        
        for(let i = missedExecutions; i >= 0; i--){
            const date = new Date(new Date().getTime() - i * 1000);
            let date_tmp = this.timeMatcher.apply(date);
            if(lastExecution.getTime() < date_tmp.getTime() && (i === 0 || this.autorecover) && this.timeMatcher.match(date)){
                this.emit('scheduled-time-matched', date_tmp);
                date_tmp.setMilliseconds(0);
                lastExecution = date_tmp;
            }
        }
        lastCheck = process.hrtime();
        this.timeout = setTimeout(matchTime, delay);
    };
    matchTime();
}

stop(){
    if(this.timeout){
        clearTimeout(this.timeout);
    }
    this.timeout = null;
}

}