mark

adds a CSS class to specific days

mark?: (a: Date) => string;

Example

<style>
    .highlight-date {
        color: #fff;
    }
</style>

const calendar = new dhx.Calendar("calendar_container", {
    mark: function(date) {
        if (date.getDay() === 6) {
            return "highlight-date";
        }
    },
    css: "dhx_widget--bordered"
});

Related sample: Calendar. Marked and disabled dates

The function passed to the method receives one parameter:

• date (Date) - a date object

and must return a string with the name of the CSS class or an empty string.