我正在尝试获取多个元素,这些元素是根据3个数组“顶部”,“底部”,“鞋子”组织的。使用javascript更改多个图像的样式(不透明度)
我知道我可以使用
document.getElementsByClassName("class1 class2");
如何转变作风为每个对象的抢多个对象,我当前的代码是:(我曾经尝试都的知名度和透明度,但它不断收到一个未捕获的类型错误,因为document.getelements ....不返回任何东西。
function filter() {
var this_id = event.target.id;
console.log(this_id);
if (this_id = "filtertops") {
document.getElementsByClassName("a4 a7 a11 a12 a8").style.visibility="hidden"; //not tops
document.getElementsByClassName("a1 a2 a3 a5 a9 a10 a14").style.visbility="visible"; // tops
}
else if (this_id = "filterbottoms") {
document.getElementsByClassName("a2 a3 a5 a10 a14 a8").style.opacity="0.4"; //not bottoms
document.getElementsByClassName("a1 a4 a7 a9 a11 a12").style.opacity="1"; //bottoms
}
else if (this_id = "filtershoes") {
document.getElementsByClassName("a1 a2 a3 a4 a5 a7 a9 a10 a11 a12 14").style.opacity="0.4"; //not shoes
document.getElementsByClassName("a8").style.opacity="1"; //shoes
}
我试图将其分配给一个变量,以及再一个for循环来改变每个对象的样式,但没有工作。
function filterbottoms() {
var nonbottom = document.getElementsByClassName("a2 a3 a5 a10 a14 a8");
var bottoms = document.getElementsByClassName("a1 a4 a7 a9 a11 a12");
for (i in bottoms)
{
i.style.visibility='visible';
}
for (i in nonbottom)
{
i.style.visibility='hidden';
}
}
CSS类名不得以数字开头,请参阅:http://stackoverflow.com/questions/448981/what-characters-are-valid-in-css-class-names – feeela