[QUESTION] How Customized chart data works

[gabrielbaeg]

Hi!
I'm was playing with some scripts and I'm trying to test 'Customized char data'.
I did create this script :

code :

// Add script parameter 'paramLines' as Chart lines (array)
if (paramLines && Array.isArray(paramLines)) {
    const count = 10;
    paramLines.forEach(line => {
        var y = [];
        var x = [];
        for (var i = 0; i < count; i++) {
            const randomNumber = Math.floor(Math.random() * 21);
            y.push(randomNumber);
            x.push(i);
        }
        line['y'] = y;
        line['x'] = x;
    });
    return paramLines;
} else {
    return 'Missing chart lines';
}

chart settings :

chart lines :

Every tag is internal tag, and with random values given by individual scripts for each tag.
The chart doesn't update anything and doesn't do anything and I couldn't find any documentation for this code template.
What I'm doing wrong ?

[unocelli]

Hi, please provide your project