如何使用JavaScript测试xml中是否存在特定标记名

Question

I want to check whether there is a specific tagname in an xml file, using javascript. pseudocode:

if (there_is_a_tag_name_called_<picture>)
{ variable=1;}
else
{variable=0;}

note: the if( "tagname.length>0") wont work....

how can I do it?

Answer 1

I think you can use this

if(node.getElementsByTagName("picture").length > 0){ 
variable=1;
 }
else
{variable=0;}

Answer 2

I am unable to past html content, Hence i am pasting my code as an image