jquery 遍历 filter(expr)
filter(expr)将匹配元素集合中不满足‘expr’条件的匹配元素集合删除，形成新的集合
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><script src="http://code.jquery.com/jquery-latest.js"></script> <script>$(document).ready(function(){ $("div").css("background", "#c8ebcc") .filter(".middle") .css("border-color", "red");});</script><style>div { width:60px; height:60px; margin:5px; float:left; border:2px white solid;}</style></head><body><div></div><div class="middle"></div><div class="middle"></div><div class="middle"></div><div class="middle"></div><div></div></body></html>
.filter(".middle")
删除div元素集合中不包含特殊样式‘middle’的div元素，形成新的div元素集合。以下是新的div元素集合
<div class="middle"></div>
<div class="middle"></div>
<div class="middle"></div>
<div class="middle"></div>
页:
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