Hello!

the console.log in my p5 script is not showing what I expect and I do not understand, why.

Basically I want to create a random square matrix of zeroes and ones, but in the (rare) case the function returns only zeroes, I want to force at least one value to 1.

I wanted to confirm the behaviour of my code with console.log and check the array before and after the update.

```
function setup() {
createCanvas(400, 400);
let a = getRandomMatrix(3)
}
function getRandomMatrix(_size) {
let _matrix = [];
let _isValid = false;
let _randVal;
//fill the _matrix with random values 0 and 1:
for (let i = 0; i < _size; i++) {
for (let j = 0; j < _size; j++) {
_index = _size * i + j;
_randVal = int(random(0, 0)); // range is normally (0,2), but for testing I force all values to 0.
_matrix[_index] = _randVal;
//if any of the _matrix elements has a value > 0, then _matrix is valid:
if (_randVal > 0) {
_isValid = true;
}
}
}
//if all elements of _matrix are equal to 0
//set one random element of _matrix to 1:
//HERE IS THE STRANGE BEHAVIOUR - I EXPECT THE CONSOLE.LOG TO BE DIFFERENT
//BEFORE AND AFTER I FORCE ONE ELEMENT TO 1. BUT THE OUTPUT IS THE SAME
//SHOWING ONE ELEMENT TO BE 1 EVEN BEFORE THE IF-STATEMENT:
console.log(_isValid, "1: ", _matrix);
if (!_isValid) {
_matrix[floor(random(_matrix.length))] = 1;
}
console.log(_isValid, "2: ", _matrix);
return _matrix;
}
```

I hope my explanation makes any sense and you can tell me where my thinking/understanding is flawed.

many thanks,

Jochen