jQuery如何防止重新打开新窗口? [英] How jQuery can prevent reopening a new window?

问题描述

我有下面的代码，每当用户按下F2键时，就会打开一个新窗口.

I have the code below to open a new window whenever user presses F2 key.

$(document).bind('keyup', function(e){
    if(e.which==113) {
        window.open('newPage.htm','_blank','','false');
    }
});

现在，我想防止用户在前一个窗口仍处于打开状态的情况下打开新窗口.我如何点它?

Now, I want to prevent user to open a new window while the previous one is still opened. How can I dot it ?

推荐答案

var opened = null;
$(document).bind('keyup', function(e){
    if (e.which == 113 && (!opened || !opened.window))
        opened = window.open('newPage.htm','_blank','','false');
​});​

这篇关于jQuery如何防止重新打开新窗口?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！