未捕获错误：语法错误，无法识别的表达式：悬停 [英] Uncaught Error: Syntax error, unrecognized expression: hover

问题描述

以下是该问题的JSFidle： http://jsfiddle.net/LRTh3/36/

Here is the JSFidle to the problem: http://jsfiddle.net/LRTh3/36/

$('div.boxes').mousedown(function (event) {

    // Error on this line
    var inner_box = $(".box").is(":hover");

    if ( inner_box == true ) {

        alert("blue,gree,pink was clicked");
    }

    else alert("You mousedowned on the red box");

});​

console: Uncaught Error: Syntax error, unrecognized expression: hover 

如果只显示一个.box图层，则有效。这是一个错误吗？我该如何解决这个问题？

Works if only one ".box" layer is presented. Is this a bug? How would I fix this?

推荐答案

$('div.boxes').mousedown(function (event) {

// Error on this line
var $target = $(event.target);    
if (  $target.is(".box")) {

    alert("blue,gree,pink was clicked");
}

else alert("You mousedowned on the red box");


});​

我从 jQuery API doc

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