jQuery - 隐藏元素的最佳方法? (以防止元素在实际隐藏之前闪烁)
我记得在某个时刻 Opera (很可能是 Safari。)
遇到了一个问题,如果您在元素上使用 .hide()
,它会短暂闪烁,然后才会出现实际上隐藏了该元素。
现在,如果你不想忽略那些由于某种原因在浏览器中没有打开 js 的人,你就不能真正使用 CSS 在该元素中设置 display: none;
来隐藏它,然后使用 js 来例如淡入。
我最近注意到这种情况在 Opera 中不再发生。所以,我想知道在某些浏览器中是否仍然会发生这种情况,以防我错过了......并假设这种情况会发生。什么方法是最安全的方法? (当然在这种情况下忽略 css 方法。)
js .hide()
js .addClass('hide')
css .hide { display: none;或者
其他什么?
编辑:
js element.style.display = "none"
js $(element).css({display:"none"})
Edit2:这个问题可能已经在实际上是野生动物园。我还认为较新的 jquery 版本可能已经解决了这个问题。我认为 jquery 网站上有一些关于此问题的错误报告,但我找不到这些错误报告。或者它仍然可能是较新的浏览器版本修复了它.. 没有把握。
Edit3:
所以,当我开始在 Safari 而不是 Opera 中搜索这个错误时,我确实发现了更多关于此问题的信息。虽然我不能肯定地说它在歌剧中也从未发生过......
看起来这个问题不再存在并且使用 .hide()
是安全的,但我学到的是当问题仍然存在时,这个 $(element).css({display:"none"})
确实解决了问题。
I remember that at some point Opera ( Mostlikely it was Safari instead. )
had a problem that if you used .hide()
on element, it would flash briefly before it would actually hide the element.
Now if you dont want to ignore those who for some reason dont have js on in their browser you cant really use CSS to set display: none;
in that element to hide it and then use js to for example fade it in.
I recently noticed that this didnt happen anymore in Opera. So, i'd like to know if this still does happen in some browsers incase ive missed that.. And asuming that this would happen. What way would be the safest way to do it? ( of course ignoring the css method in this case. )
js .hide()
js .addClass('hide')
css .hide { display: none; }
Or something else?
Edit:
js element.style.display = "none"
js $(element).css({display:"none"})
Edit2: This issue might have been in Safari actually. I also got thinking that newer jquery versions might have fixed the issue.. As i think there was a few bug reports about this problem on jquery website but i couldnt find those bug reports ..Or it could still be that newer browser version fixed it.. Not sure.
Edit3:
So, I did indeed find a lot more about this when I started searching for this bug in Safari rather than Opera. Though i cant say for sure that it never happened in opera as well...
It would seem like this problem does not exist anymore and that it is safe to use .hide()
but what I learned was that this $(element).css({display:"none"})
did fix the problem when the problem was still out there.
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您应该始终依赖使用
jQuery
hide()
方法来隐藏任何元素,因为它会处理所有浏览器。不过我在Opera
中没有发现任何问题。出于同样的原因,即使要显示任何元素,您也应该始终依赖使用
show()
方法。例如,要显示
tr
元素,如果我们说tr.css("display", "block")
它在 Firefox 中将不起作用,因为它是一个表格行并且需要指定为.css("display", "table-row")
。但如果您使用tr.show()
,您就不必担心任何浏览器。You should always rely on using
jQuery
hide()
method to hide any element because it takes care of all the browsers. I haven't seen any issues inOpera
though.Even to show any element you should always rely on using
show()
method again for the same reason.E.g. To show a
tr
element if we saytr.css("display", "block")
it will not work in Firefox because it is a table row and it needs to be specified as.css("display", "table-row")
. But if you usetr.show()
you dont have to worry about any browser.您可以使用 noscript 提供始终显示的替代元素,而 JS 元素一开始是隐藏的。
或者,您可以从没有 CSS 规则的类开始,然后获取脚本来更改 CSS 类规则,以确保元素一开始是隐藏的。
You could use noscript to provide an alternative element that is always displayed, whilst the JS element starts off hidden.
Or you could use start out with a class with no CSS rules and then get a script to alter the CSS class rule to make sure the element starts off hidden.
只需在样式表中添加 display:none 或在元素上放置内联 style="display:none" 即可。
Simply add a display:none in a stylesheet or put an inline style="display:none" on the element.