convert a string to array of arrays

Question

I have a string as a prototype of an array if arrays:

'[ [7,8,9], [12,13,14] ]'

Are there any solutions to convert this to array of arrays?

I have used Array.from() with no luck.

Answer 1

You can use eval (usually not recommended):

 let str = '[ [7,8,9], [12,13,14] ]'; let arr = eval(str); console.log(arr);

Or JSON.parse :

 let str = '[ [7,8,9], [12,13,14] ]'; let arr = JSON.parse(str); console.log(arr);

Answer 2

The easiest way is to use eval but you know: eval is evil because it could be harmfull and should normally not be used.

 let str = '[ [7,8,9], [12,13,14] ]'; eval('arr='+str+';'); console.log(arr);

Answer 3

You can use JSON.parse() Its parse string to JS object.