语法错误：缺少元素列表后的[]（[对象对象]）

Question

I return JSON from PHP, it works fine, but when the data is empty i fill in default JSON data, to use for applying .css on a jQuery selected element, like this:

db.data = { "blocks" :  {"css" : {"background-color" : "purple" }}};

(Edit: the css from my db actually contains slashes and does work with the eval() : "css":"{ \\"background-color\\" : \\"grey\\" } )

If I console.log it, FF will display it as an object (all green and red and nicely formatted and clickable/expandable in firebug:

Object { background-color= "purple" }

I eval() it before passing it to css. I tried $.evalJSON from the jQuery JSON Plugin, but it will give:

SyntaxError: JSON.parse: unexpected character

Edit: I tried it without eval() but will throw the same error, but not when I use the css with the slashes

I tried manually adding a ] somewhere, but obviously wont work, and if I add two, it will create an array, which I don't want.

I apply CSS to element like this:

DOMID = $('#target');
var CSS = eval(" (" +db.data.blocks.css+") ");
this.DOMID.css(CSS);

Tried without the " (" , without spaces, "(" .

any ideas?

Answer 1

The code you posted would never work because it is misguided. There is no need to eval anything, and even if there were coercing db.data.blocks.css to a string (in order to put in the parens) would give you back the completely wrong value.

Instead, you should simply write

this.DOMID.css(db.data.blocks.css);