How would I read such a JSON structure?

{"some_id":
    [
    {"city"开发者_运维技巧:"Bellevue"},
    {"state":"Washington"}
    ]
}

var theJSonString = '({"some_id": [ {"city":"Bellevue"}, {"state":"Washington"} ] })';
var x = eval(theJSonString);
alert(x.some_id[0].city); // will display "Bellevue"

var json = {"some_id": [ {"city":"Bellevue"}, {"state":"Washington"} ] }

json.some_id[0].city equals "Bellevue"

and

json.some_id[1].state equals "Washington"

And this (the json parser and stringifier from json.org) might help :) (check the link at the bottom of the page)

All current browsers support window.JSON.parse(). It takes a JSON formatted string and returns a Javascript object or array.

Demo: http://jsfiddle.net/ThinkingStiff/KnbAJ/

Script:

var json = '{"some_id":[{"city":"Bellevue"},{"state":"Washington"}]}'
    object = window.JSON.parse( json );

document.getElementById( 'length' ).textContent = object.some_id.length;
document.getElementById( 'city' ).textContent = object.some_id[0].city;
document.getElementById( 'state' ).textContent = object.some_id[1].state;

HTML:

length: <span id="length"></span><br />
some_id[0].city: <span id="city"></span><br />
some_id[1].state: <span id="state"></span><br />

Output:

length: 2
some_id[0].city: Bellevue
some_id[1].state: Washington