| Property | Type | Description |

| ------------------- | --------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

| `key` | String | The key for selecting data from the record in the items array. Required when setting the `fields` via an array of objects. |

| `label` | String | Appears in the columns table header (and footer if `foot-clone` is set). Defaults to the field's key (in humanized format) if not provided. It's possible to use empty labels by assigning an empty string `""` but be sure you also set `headerTitle` to provide non-sighted users a hint about the column contents. |

| `headerTitle` | String | Text to place on the fields header `<th>` attribute `title`. Defaults to no `title` attribute. |

| `headerAbbr` | String | Text to place on the fields header `<th>` attribute `abbr`. Set this to the unabbreviated version of the label (or title) if label (or title) is an abbreviation. Defaults to no `abbr` attribute. |

| `class` | String or Array | Class name (or array of class names) to add to `<th>` **and** `<td>` in the column. |

| `formatter` | String or Function | A formatter callback function or name of a method in your component, can be used instead of (or in conjunction with) scoped field slots. Refer to [Custom Data Rendering](#custom-data-rendering) for more details. |

| `sortable` | Boolean | Enable sorting on this column. Refer to the [Sorting](#sorting) Section for more details. |

| `sortDirection` | String | Set the initial sort direction on this column when it becomes sorted. Refer to the [Change initial sort direction](#Change-initial-sort-direction) Section for more details. |

| `sortByFormatted` | Boolean or Function | Sort the column by the result of the field's `formatter` callback function when set to `true`. Default is `false`. Boolean has no effect if the field does not have a `formatter`. Optionally accepts a formatter function _reference_ to format the value before sorting. Refer to the [Sorting](#sorting) Section for more details. |

| `filterByFormatted` | Boolean or Function | Filter the column by the result of the field's `formatter` callback function when set to `true`. Default is `false`. Boolean has no effect if the field does not have a `formatter`. Optionally accepts a formatter function _reference_ to format the value before filtering. Refer to the [Filtering](#filtering) section for more details. |

| `tdClass` | String or Array or Function | Class name (or array of class names) to add to `<tbody>` data `<td>` cells in the column. If custom classes per cell are required, a callback function can be specified instead. The function will be called as `tdClass( value, key, item )` and it may return an `Array` or `String`. |

| `thClass` | String or Array | Class name (or array of class names) to add to this field's `<thead>`/`<tfoot>` heading `<th>` cell. |

| `thStyle` | Object | JavaScript object representing CSS styles you would like to apply to the table `<thead>`/`<tfoot>` field `<th>`. |

| `variant` | String | Apply contextual class to all the `<th>` **and** `<td>` in the column - `active`, `success`, `info`, `warning`, `danger`. These variants map to classes `thead-${variant}` (in the header), `table-${variant}` (in the body), or `bg-${variant}` (when the prop `dark` is set). |

| `tdAttr` | Object or Function | JavaScript object representing additional attributes to apply to the `<tbody>` field `<td>` cell. If custom attributes per cell are required, a callback function can be specified instead. The function will be called as `tdAttr( value, key, item )` and it may return an `Object`. |

| `thAttr` | Object or Function | JavaScript object representing additional attributes to apply to the field's `<thead>`/`<tfoot>` heading `<th>` cell. If the field's `isRowHeader` is set to `true`, the attributes will also apply to the `<tbody>` field `<th>` cell. If custom attributes per cell are required, a callback function can be specified instead. The function will be called as `thAttr( value, key, item, type )` and it may return an `Object`. |

| `isRowHeader` | Boolean | When set to `true`, the field's item data cell will be rendered with `<th>` rather than the default of `<td>`. |

| `stickyColumn` | Boolean | When set to `true`, and the table in in [responsive](#responsive-tables) mode or has [sticky headers](#sticky-headers), will cause the column to become fixed to the left when the table's horizontal scrollbar is scrolled. See [Sticky columns](#sticky-columns) for more details |