I have an array
arr = [ [1,2,3], [4,5,6], [7,8,9] ]
I want to remove the array that contains the element 4. Here it would remove 4,5,6. So it'd be arr = [[1,2,3],[7,8,9]];
I tried a
for loop but I get 0. So I read this Remove items from array with splice in for loop
but it didn't work. It removed the first number instead.