如何重新加载 JavaScript 文件

I have a question about reloading JavaScript files. I develop web pages front-ends and do a lot of coding in JS. Every time when I want to check an application's flow is correct (or do some debugging) I have to hit F5 key to reload whole page and it's scripts, and I have to wait. Waiting time depends on page's weight and sometimes I get impatient. Therefore I wonder if there is any way to reload only changed script file *.js? or maybe there is some plugin for Chrome to reload chosen script? It could be a very handy way to ease development. Thank you for replies.

这个使用 jQuery，例如：

var scs=$('script[type*=javascript]');
var scsl = scs.length;
var scsi = 0;
var o = [];
var oi = 0;
var ol = 0;
var s = '';
var fws = 0;
var sws = 0;
var v = {};

function i1(){
fws = window.setInterval(function(){
        v = $(scs[scsi]);
        
        s = v.attr('src');
        if(typeof s!='undefined' && s.indexOf('http')==-1 && s.indexOf('index')==-1){
                console.log([scsl,scsi,s]);
                o.push({src:s});
                v.remove();
        }

        if(scsi==scsl){
                console.log(o);
                window.clearInterval(fws);
                ol = o.length;
i2();
        }
        else{
                scsi++;
        }
},800);
}

function i2(){
                sws=window.setInterval(function(){
                        v = o[oi];
                        sc = $('<script>').attr({type:'text/javascript',src:v.src+'?t='+(new Date().getTime())});
                        console.log([ol,oi,v.src]);
                        $('head').append(sc);

                        if(oi==ol-1){
                                window.clearInterval(sws);
                        }
                        else{
                                oi++;
                        }
                },800);

}
i1();

据我所知，没有办法做到这一点。问题是，你不能unload页面中的脚本，一旦被评估。

即使您删除了<script>节点，它不会改变行为。例如，使用某些第三方插件可能是可能的，但我几乎可以肯定任何普通的 js 实现都不可能。

当然，您可以从服务器加载相同的脚本文件并执行（评估）它，但同样，您仍然没有卸载以前的代码，这可能会导致非常意外的行为。

因此，您必须时刻保持 F5 键的状态。