Converting a String to Object in Javascript

Question

How can I convert a string to object? that is my data :

  "({"test1":[{"test2":55,"test":"15.06"},
   {"test3":55,"test4":"15.08"}]})"

Apply eval(...) on it. May be also understand the evils of eval. — KalEl
– KalEl, Commented May 1, 2017 at 22:08
I see that in that chain you have two objects will always be like this or will it be one? If it's an object you can use JSON.parse — Alan Olivares
– Alan Olivares, Commented May 1, 2017 at 22:12

Rick Hitchcock · Accepted Answer · 2017-05-01 22:16:56Z

7

If you remove the surrounding parentheses, you will get a JSON string, which can be converted to an object using JSON.parse():

var s = '({"test1":[{"test2":55,"test":"15.06"}, {"test3":55,"test4":"15.08"}]})',
    j = s.replace(/^\((.+)\)$/, '$1'),  //remove surrounding parentheses
    o = JSON.parse(j);

console.log(o);

answered May 1, 2017 at 22:16

Rick Hitchcock

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3 Comments

Nasirli Teymur Over a year ago

thanks @RickHitchcock for this answer is pretty good acctually eval() method solve this problem .

Rick Hitchcock Over a year ago

eval() can be dangerous if you don't have control over the string. Otherwise, it should work fine. See stackoverflow.com/questions/86513/…

Nasirli Teymur Over a year ago

Ok i undestand thanks for this explanation @RickHitchcock i use your code.

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