Code that creates matrix with random 0 and 1 values

Can you please write a js code that fills empty matrix randomly with 0 or 1? I need to use Random() function.

I wrote this code and I got an error Random() is not defined

var matrix = [];


for(var y = 0; y<5; y++){
    for(var x = 0; x<5; x++){
        let arr = [0,1]
     matrix[y][x]= random(arr)
      matrix.push(matrix[y][x])
    }
}