作为标题,我试图立即将点击监听器添加到多个按钮。 但当我尝试下面的源代码时,Listener成功添加了,但它没有打开任何链接。我的意思是当函数向每个元素添加侦听器时,socialLinks数组是未定义的。有人能帮助我吗?
$('.IndexBody').arrive('#shortUrl', function(){
var shortUrl = $('#shortUrl').text();
var socialTags = ['.entypo-twitter', '.entypo-facebook', '.entypo-gplus'];
var socialLinks = ["http://twitter.com/share?text=http://"+shortUrl+" — Link made by ",
"https://www.facebook.com/sharer/sharer.php?u="+shortUrl+"&src=sdkpreparse",
"https://plus.google.com/share?url="+shortUrl];
console.log(socialLinks);
for(var i=0; i<3; i++){
$(socialTags[i]).click(function(e) {
var width = 575,
height = 400,
left = ($(window).width() - width) / 2,
top = ($(window).height() - height) / 2,
opts = 'status=1' +
',width=' + width +
',height=' + height +
',top=' + top +
',left=' + left;
window.open(socialLinks[i], 'facebook', opts);
console.log(socialLinks[i]);
return false;
})
}
});
答案 0 :(得分:1)
问题是你在closure内捕获i
,所以当点击按钮时它的值是当前值,而不是创建函数时的值。
尝试这样的事情:
for(var i=0; i<3; i++){
$(socialTags[i]).click(createHandler(socialLinks, i));
}
function createHandler (socialLinks, i) {
return function (e) {
var width = 575,
height = 400,
left = ($(window).width() - width) / 2,
top = ($(window).height() - height) / 2,
opts = 'status=1' +
',width=' + width +
',height=' + height +
',top=' + top +
',left=' + left;
window.open(socialLinks[i], 'facebook', opts);
console.log(socialLinks[i]);
return false;
};
}