本文介绍了类更改后在jQuery中重新计算元素高度的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 我有一个项目列表,根据一个标准,它通过jQuery在document.ready上获取一个类,触发CSS3列。 如果列表显示在列中,它将具有较小的高度。有什么办法在类更改后立即获取新的高度在jQuery吗? $ items.each(function(i){ var theItem = this; console.log($(theItem).height()); //扩展布局 if(theCriteria){ $ theItem).addClass('extended'); console.log('after',$(theItem).height());} } / pre> 上面的代码返回两个调用的初始高度,我猜我需要触发其他东西。解决方案很多时候,dom操作不会发生,直到函数关闭完成。 有关问题: http://www.quirksmode.org/blog/archives /2009/08/when_to_read_ou.html 最好是执行 setTimeout 函式呼叫而不是直接日志。 控制台。 log('after',$(theItem).height()); setTimeout(function(){console.log('after',$(theItem).height()); },0); 将超时设置为 0 尽快运行,而仍在运行的当前函数。 希望这是你的问题。祝你好运。 I've got a list of items and according to a criteria it gets a class via jQuery on document.ready that triggers CSS3 columns.If the list is displayed in columns it would have a smaller height. Is there any way to get the new height in jQuery immediately after the class change? $items.each(function(i){var theItem = this;console.log($(theItem).height());//extended layoutif ( theCriteria ) { $(theItem).addClass('extended'); console.log('after', $(theItem).height()); }}The code above returns the initial height on both calls. I'm guessing I need to trigger something else. 解决方案 A lot of times, dom manipulation doesn't occur until a function closure is complete.A good article on the issue: http://www.quirksmode.org/blog/archives/2009/08/when_to_read_ou.htmlIt might be best to do a setTimeout function call instead of the direct log.instead of:console.log('after', $(theItem).height());trysetTimeout(function(){ console.log('after', $(theItem).height()); }, 0);Setting the timeout to 0 will make it run as soon as possible, while still after the current function that is running.Hopefully that's your issue. Good luck. 这篇关于类更改后在jQuery中重新计算元素高度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! 09-15 04:07