Eval() = Unexpected token : error

Question

I tried this simple JavaScript code:

eval(\'{\"Topics\":[\"toto\",\"tata\",\"titi\"]}\')

In the Chrome console, for example, this returns

Answer 1

USE:

function evalJson(jsArray){ eval("function x(){ return "+ jsArray +"; }"); return x(); }

var yourJson =evalJson('{"Topics":["toto","tata","titi"]}');

console.log(yourJson.Topics[1]); // print 'tata''

Answer 2

Number one: Do not use eval.

Number two. Only use eval to make something, well be evaluated. Like for example:

eval('var topics = {"Topics":["toto","tata","titi"]}');

Answer 3

Because that's evaluating an object. eval() requires you to pass in syntactically valid javascript, and all you're doing is passing in a bare object. The call should be more like:

eval('var x = {"Topics":etc...}');

Answer 4

FWIW, use JSON.parse instead. Safer than eval.

Answer 5

if you want to make an array use the below code

var jsonObject = eval('(' +"["+ response + "]"+')');

Answer 6

You have to write like this

eval('('+stingJson+')' );

to convert an string to Object

Hope I help!