Question

以下是问题JSFfledle: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 < strong > one ".box" 层, 有效。这是臭虫吗? 我如何解决这个问题?

Answer 1

$( 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");


});

我把它从jQuery API doc 上移除。

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