What is the best way to retrieve the name of an element or component using JavaScript

I'm currently working on a webpage that includes ASP.NET panels and JavaScript which retrieves all components present on the page:

var items = Sys.Application.getComponents();

My goal is to obtain the name/ID of each element stored in the 'items' variable. I attempted the following code snippet, but unfortunately, it doesn't yield the desired result:

for (var item in items) 
{
      alert(item.name);
}

I am trying to figure out which attribute of 'item' holds the name/ID information. How should I adjust the provided code to successfully achieve this?

javascriptasp.net

Answer №1

Make sure to utilize the get_name() and get_id() functions.

var elements = Sys.Application.getComponents() ;
for( var j = 0 ; j < elements.length; j++ ) {
    var element = elements[j];
    var idValue   = element.get_id();
    var nameValue = element.get_name();
}

Check out this link for more information!

Answer №2

No items are found using the key/property item, instead you should use items[item].name.

Also, if items is an array, avoid using for..in to loop through it as it is not appropriate. In such cases, use 

for(var i = 0; i < items.length; i++)
and access each item with var item = items[i] inside the loop.

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