dojo之Dom工具

addClass   hasClass   removeClass  

style  attr  hasAttr   removeAttr

dojo.query

dojo.ready(function(){

var node = dojo.byId("top");
dojo.addClass(node,"c1");
dojo.addClass(node,"c2 c3");
dojo.hasClass(node,"c1");
dojo.removeClass(node,"c1");
function firsth(){
dojo.toggleClass(node,"c1");

}

dojo.connect(dojo.byId("ss"),"click",firsth);

dojo.connect(dojo.byId("ss"),"click",function(){dojo.toggleClass(node,"c1");});

dojo.addClass(node,"c3 c2");

});

红色和蓝色效果同

dojo.toggleClass可以带有第三个参数（布尔类型）

dojo.toggleClass(someNode,"displayAsError",error);

dojo.style

dojo.style(node,"color","yellow");

dojo.style(node,"borderTopWidth");  

dojo.attr

dojo.attr(node,"name","foo");

dojo.hasAttr(node,"name");   true

dojo.removeAttr(node,"name","foo");

dojo.attr(node,{

tabIndex:"-1",

        customAttr:"custom value",

        title:"an awsome node"

});   一次添加多个属性

dojo.query

示例：

    <div>
<form>
<p>问卷调查</p>
<div class="questions">
<p>
<span><input type="radio" name="q1" value="yes">yes</span>
<span><input type="radio" name="q1" value="no">no</span>
Are you a C programmer?
</p>
<p>
<span><input type="radio" name="q1-yes" value="yes">yes</span>
<span><input type="radio" name="q1-yes" value="no">no</span>
<span><input type="radio" name="q1-yes" value="maybe">Don't know</span>
Have you read?
</p>
<p>
<span><input type="radio" name="q1" value="yes">yes</span>
<span><input type="radio" name="q1" value="no">no</span>
Are you a C programmer?
</p>
<p>
<span><input type="radio" name="q1-yes" value="yes">yes</span>
<span><input type="radio" name="q1-yes" value="no">no</span>
<span><input type="radio" name="q1-yes" value="maybe">Don't know</span>
Have you read?
</p>
</div>
</form>
</div>

隔行换色：  dojo.query("div.questions p");

dojo.query("div.questions p").forEach(function(node,i){
dojo.addClass(node,(i%2)? "lightBg":"darkBg");
});

dojo.style(dojo.query("p[title='test']")[0],"border","1px solid red");