How convert a string representation of date array to array JS?

Question

I need to convert a string representation of array to JS array for looping purpose the string is single quoted

in My js

var length1 = $('.length').text();  //['2018-9-24', '2018-9-26', '2018-9-25']
console.log(length1.length) // 39 as output i need it as 3 

to loop through each date

Any help would be appreciated

I tried

var myArray=json.parse(length1) // but its not working  

Answer 1

Replace single quotes with double and then parse it:

 var str = "['2018-9-24', '2018-9-26', '2018-9-25']"; console.log(JSON.parse(str.replace(/'/g, '"'))); 

Answer 2

I had done this in an another way

var objectstring = "['2018-9-24', '2018-9-26', '2018-9-25']";
var objectStringArray = (new Function("return [" + objectstring+ "];")());