Accessing JSON data

Question

If I am given the following data by a web-service:

{
    \"d\": [
        {
            \"col1\": \"col 1 data 1\",
            \"col2\": \"col 2 data 1\"
           


        

Answer 1

alert( data.d[1].col1 ) ;

In human:

1. start at data variable
2. go to d property.
3. d is an array, so look up the value at index 1 (second value)
4. look up the col1 property of that value.

May I suggest console.log? In Chrome and with Firefox/Firebug it will give you a nice log message which tells you more about your data.