Matlab removing unwanted numbers from array

arraysMATLAB

I have got a matlab script from net which generates even numbers from an inital value. this is the code.

n = [1 2 3 4 5 6];
iseven = [];
for i = 1: length(n);
if rem(n(i),2) == 0
iseven(i) = i;
else iseven(i) = 0;
end
end
iseven

and its results is this

iseven =

     0     2     0     4     0     6

in the result i am getting both even numbers and zeros, is there any way i can remove the zeros and get a result like this

iseven =

         2    4     6

To display only non-zero results, you can use nonzeros

iseven = [0     2     0     4     0     6]

nonzeros(iseven)

ans =

     2     4     6

new ArrayList<>(Arrays.asList(array));

Modern browsers have Array#includes, which does exactly that and is widely supported by everyone except IE:

console.log(['joe', 'jane', 'mary'].includes('jane')); //true

You can also use Array#indexOf, which is less direct, but doesn't require polyfills for outdated browsers.

console.log(['joe', 'jane', 'mary'].indexOf('jane') >= 0); //true

Many frameworks also offer similar methods:

Notice that some frameworks implement this as a function, while others add the function to the array prototype.