I am returning HashMap<Long,String> from server on one of the Ajax calls. How can I iterate over the it to extract key,value pair?
Thank you
1 Answer
Return it as JSON object:
{1:"String",5:"Foo"}
On the client, you can then access the elements then using data[1] and data[5]. While it looks like an array access, JavaScript will do the right thing (Kudos to Felix Kling for pointing that out).
3 Comments
Felix Kling
"Note that you can't use numbers as JavaScript object keys" That's incorrect. Example:
var obj = {5: 'foo'};. It's true that the property has to be accessed with obj[5], but that's not "array access", it's called bracket notation and is just an alternative way to access properties. See the MDN documentation. In fact, arrays are just objects themselves and each element of the array is a property (with a numeric property name) of that underlying object.
Aaron Digulla
@FelixKling: Thanks, fixed. I should really write more code :-)
user890263
Thank you guys it is returned as object hash(associative array) and I was able to retrieve values through simple for loop.
JSON?