Array of string to array of array in Javascript

I’m wondering how to convert an array of strings

lines = ['101','010','110'];

to an array of arrays like this:

x = [
[1,0,1],
[0,1,0],
[1,1,0]'
]

I already tried

x = (lines.forEach(e => (e.split(''))))

and realized String.split doesnt mutate the current string. So my next step was to create a new array with these values.

x = new Array(lines.forEach(e => (e.split(''))))

My thoughts behind this line:
The code should take an element (e) of the lines array and apply the split funtion to it. (which is does when i console.log() it.) BUT it doesnt apply it to the new array.

Maybe the problem is, that it doesn’t loop through x but maybe i overlook another fact.