[рони]

Ktoto210978,
как вариант ...

let cards = [...document.querySelectorAll('.card > canvas')];
cards = cards.map(elem => {
    let cfd = {
        type: 'line',
        data: {
            labels: [],
            datasets: [{
                data: [],
                borderColor: 'green',
                borderWidth: 2,
                tension: 0.5
            }]
        },
        options: {
            plugins: {
                legend: {
                    display: false
                }
            },
            indexAxis: 'x',
            responsive: true,
            suggestedMin: -10,
            suggestedMax: 200,
            scales: {
                Y: {
                    beginAtZero: true
                }
            }
        }
    };
    return new Chart(elem, cfd);
})
function addData(chart, label, data, color) {
    chart.data.labels = label;
    chart.data.datasets[0].data = data;
    chart.data.datasets[0].borderColor = color;
    chart.update();
}
let opt = [
    [dynamic.su, 'blue'],
    [dynamic.us, 'green'],
    [dynamic.pr, 'red'],
    [dynamic.sp, 'orange']
];
cards.forEach((elem, i) => addData(elem, dynamic.days, ...opt[i]));