Jquery animate height with a variable？ [英] Jquery animate height with a variable?

问题描述

这里是评论的JSfiddle。我试图动画的div的高度使用jquery，修改css。然而，由于这个项目的动态性质，高度将是未知的，并且存在一个变量。

Here is the commented JSfiddle. I am trying to animate the height of a div using jquery, which modifies the css. However, due to the dynamic nature of this project, the height will be unknown and found with a variable.

http://jsfiddle.net/8JwE9/6/

$('span').hide();


  $('.span3').click(function() {


    var pollheight = $(this).find('span').height().toString(); //Trying to increase the DIV += this height (actually trying to toggle it but i'll hit that bridge later.

      //$(this).find('span').append(pollheight);

    $(this).animate({height: '+=80'},1000); //Trying to replace +=80 with a variable

        $(this).find('span').toggle(1000);
    });

推荐答案

$(this).animate({height: '+=' + pollHeight},1000);

这应该可以做。

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