# weekdayLabels

Calendar heatmap: weekday labels down the left — `short` (rows 0 / 2 / 4), `all`, `none`.

Canonical: https://chart.syidax.com/docs/options/weekdayLabels/

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## Definition

| Item | Value |
| --- | --- |
| JavaScript property | `weekdayLabels` |
| HTML attribute | `weekday-labels` |
| Type | `CalendarWeekdayLabels` |
| Default | `undefined` |
| Allowed values | `none`, `short`, `all` |

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

- [CalendarWeekdayLabels](https://chart.syidax.com/docs/types/CalendarWeekdayLabels.md) — Type definition

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## Related documentation

A property with the same name may have different types and defaults across charts. When using a direct tag, follow that chart's documentation below.

- [Shared facade and direct tags](https://chart.syidax.com/docs/concepts.md)
- [sy-calendar-heatmap](https://chart.syidax.com/docs/components/calendar-heatmap.md#property-weekdayLabels)