Javascript有没有办法检测已请求页面

Question

在点击 a-tag 的那一刻，浏览器开始请求 URL。有没有办法检测该请求以及 URL 请求是什么？

Answer 1

At the very moment an a-tag has been clicked and the browser commences to request the URL

如果您确定请求页面 (URL) 的唯一方式是单击链接，那么您可以将事件监听器添加到页面的 anchor 标记

在纯 JS 中

var allAnchors = document.getElementsByTagName("a");
for ( var counter = 0; counter < allAnchors.length; counter++)
{
    allAnchors[counter].addEventListener( "click", function(e){
      e.preventDefault();
      var src = this.getAttribute( "href" );
      alert( "This link was clicked " + src )
      location.href = src;
    }, false );
}

在 jQuery 中

$( "a" ).click( function(){
      e.preventDefault();
      alert( "This link was clicked " + $( this ).attr( "href" ) );
      location.href = $( this ).attr( "href" );
} );