convert array data in js

Question

It should not exist ' in my array data to draw my chart. But my data is as follows:

var data=[['1','200','10'],['2','300','15'],...]

How do I convert it this way?

var data=[[1,200,10],[2,300,15],...]

Answer 1

Example:

var data=[['1','200','10'],['2','300','15']];
data.forEach(function (item, index) { 
   data[index] = item.map(Number);
}); 
console.log(data);