Grouping - Tasks User Guide - Obsidian Publish

# Grouping <span class="related-pages">#feature/grouping</span>  ## Contents This page is long. Here are some links to the main sections: - [[#Basics]] - [[#Custom Groups]] - [[#Group by Task Statuses]] - [[#Group by Task Dependencies]] - [[#Group by Dates in Tasks]] - [[#Group by Other Task Properties]] - [[#Group by File Properties]] - [[#Multiple groups]] - [[#Refining groups]] - [[#Notes]] - [[#Screenshots]] - [[#Examples]] ## Basics > [!released] Introduced in Tasks 1.6.0. By default, Tasks displays tasks in a single list. To divide the matching tasks up with headings, you can add `group by` lines to the query. ## Custom Groups > [!released] > `group by function` was introduced in Tasks 4.0.0. Tasks provides many built-in grouping options, but sometimes they don't quite do what is wanted by all users. Now Tasks has a powerful mechanism for you to create your own **custom groups**, offering incredible flexibility. There are many examples of the custom grouping instruction `group by function` in the documentation below, with explanations, for when the `group by` instructions built in to Tasks do not satisfy your preferences. You can find out more about this very powerful facility in [[Custom Grouping]]. ## Group by Task Statuses For more information, including adding your own customised statuses, see [[Statuses]]. ### Status - `group by status` (Done or Todo, which is capitalized for visibility in the headings) - Note that the Done group is displayed before the Todo group, which differs from the Sorting ordering of this property. - `Done` is used for tasks status types `DONE`, `CANCELLED` and `NON_TASK` - `Todo` is used for status types with type `TODO` and `IN_PROGRESS` Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by status** is now possible.  ```javascript group by function task.isDone ? "Action Required" : "Nothing To Do" ``` - Use JavaScript's ternary operator to choose what to do for true (after the ?) and false (after the :) values.  ### Status Name - `group by status.name` - This groups by the names you give to your custom statuses, in alphabetical order. > [!released] `group by status.name` was introduced in Tasks 1.23.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by status names** is now possible.  ```javascript group by function task.status.name ``` - Identical to "group by status.name". ```javascript group by function task.status.name.toUpperCase() ``` - Convert the status names to capitals.  ### Status Type - `group by status.type` - This groups by the types you have given to your custom statuses. - The groups will appear in this order, and with these group names: - `IN_PROGRESS` - `TODO` - `DONE` - `CANCELLED` - `NON_TASK` > [!released] `group by status.type` was introduced in Tasks 1.23.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by status types** is now possible. `task.status.typeGroupText` was added in Tasks 4.9.0.  ```javascript group by function task.status.type ``` - Unlike "group by status.type", this sorts the status types in alphabetical order. ```javascript group by function task.status.typeGroupText ``` - This sorts the status types in the same order as "group by status.type".  ### Status Symbol There is no built-in instruction to group by status symbols. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by status symbol** is now possible.  ```javascript group by function "Status symbol: " + task.status.symbol.replace(" ", "space") ``` - Group by the status symbol, making space characters visible.  ### Next Status Symbol There is no built-in instruction to group by next status symbols. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by next status symbol** is now possible.  ```javascript group by function "Next status symbol: " + task.status.nextSymbol.replace(" ", "space") ``` - Group by the next status symbol, making space characters visible.  ## Group by Task Dependencies At a high level, task dependencies define the order in which you want to work on a set of tasks. You can read more about them in [[Task Dependencies]]. > [!released] > Task Dependencies were introduced in Tasks 6.1.0. ### Id - `group by id` For more information, see [[Task Dependencies]]. > [!released] > > - Task Id was introduced in Tasks 6.1.0. Since Tasks 6.1.0, **[[Custom Grouping|custom grouping]] by Id** is now possible, using `task.id`.  ```javascript group by function task.id ``` - Group by task Ids, if any. - Note that currently there is no way to access any tasks that are blocked by these Ids.  ### Depends On There is no built-in instruction to group by 'Depends On'. For more information, see [[Task Dependencies]]. > [!released] > > - Task Depends On was introduced in Tasks 6.1.0. Since Tasks 6.1.0, **[[Custom Grouping|custom grouping]] by Depends On** is now possible, using `task.dependsOn`.  ```javascript group by function task.dependsOn ``` - Group by the Ids of the tasks that each task depends on, if any. - If a task depends on more than one other task, it will be listed multiple times. - Note that currently there is no way to access the tasks being depended on.  ## Group by Dates in Tasks ### Due Date - `group by due` - The due date of the task, including the week-day, or `Invalid due date` or `No due date`. > [!released] > > - `due` grouping option was introduced in Tasks 1.7.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by due date** is now possible. These examples all use `task.due` property, which is a `TasksDate` object. See [[Task Properties#Values in TasksDate Properties|Values in TasksDate Properties]] to explore its capabilities. Some of these examples use the [moment.js format characters](https://momentjs.com/docs/#/displaying/format/).  ```javascript group by function task.due.category.groupText ``` - Group task due dates in to 5 broad categories: `Invalid date`, `Overdue`, `Today`, `Future` and `Undated`, displayed in that order. - Try this on a line before `group by due` if there are a lot of due date headings, and you would like them to be broken down in to some kind of structure. - The values `task.due.category.name` and `task.due.category.sortOrder` are also available. ```javascript group by function task.due.fromNow.groupText ``` - Group by the [time from now](https://momentjs.com/docs/#/displaying/fromnow/), for example `8 days ago`, `in 11 hours`. - It uses an empty string (so no heading) if there is no due date. - The values `task.due.fromNow.name` and `task.due.fromNow.sortOrder` are also available. ```javascript group by function task.due.format("YYYY-MM-DD dddd") ``` - Like "group by due", except it uses no heading, instead of a heading "No due date", if there is no due date. ```javascript group by function task.due.formatAsDate() ``` - Format date as YYYY-MM-DD or empty string (so no heading) if there is no due date. ```javascript group by function task.due.formatAsDateAndTime() ``` - Format date as YYYY-MM-DD HH:mm or empty string if no due date. - Note: - This is shown for demonstration purposes. - Currently the Tasks plugin does not support storing of times. - Do not add times to your tasks, as it will break the reading of task data. ```javascript group by function task.due.format("YYYY[%%]-MM[%%] MMM", "no due date") ``` - Group by month, for example `2023%%-05%% May` ... - ... which gets rendered by Obsidian as `2023 May`. - Or show a default heading "no due date" if no date. - The hidden month number is added, commented-out between two `%%` strings, to control the sort order of headings. - To escape characters in format strings, you can wrap the characters in square brackets (here, `[%%]`). ```javascript group by function task.due.format("YYYY[%%]-MM[%%] MMM [- Week] WW") ``` - Group by month and week number, for example `2023%%-05%% May - Week 22` ... - ... which gets rendered by Obsidian as `2023 May - Week 22`. - If the month number is not embedded, in some years the first or last week of the year is displayed in a non-logical order.  DON'T PANIC! For users who are comfortable with JavaScript, these more complicated examples may also be of interest:  ```javascript group by function task.due.format("dddd") ``` - Group by day of the week (Monday, Tuesday, etc). - The day names are sorted alphabetically. ```javascript group by function task.due.format("[%%]d[%%]dddd") ``` - Group by day of the week (Sunday, Monday, Tuesday, etc). - The day names are sorted in date order, starting with Sunday. ```javascript group by function \ const date = task.due; \ if (!date.moment) { \ return "Undated"; \ } \ if (date.moment.day() === 0) { \ {{! Put the Sunday group last: }} \ return date.format("[%%][8][%%]dddd"); \ } \ return date.format("[%%]d[%%]dddd"); ``` - Group by day of the week (Monday, Tuesday, etc). - The day names are sorted in date order, starting with Monday. - Tasks without due dates are displayed at the end, under a heading "Undated". - The key technique is to say that if the day is Sunday (`0`), then force it to be displayed as date number `8`, so it comes after the other days of the week. - To add comments, we can use `{{! ... }}` - To make the expression more readable, we put a `\` at the end of several lines, to continue the expression on the next line. ```javascript group by function \ const date = task.due.moment; \ return \ (!date) ? '%%4%% Undated' : \ !date.isValid() ? '%%0%% Invalid date' : \ date.isBefore(moment(), 'day') ? '%%1%% Overdue' : \ date.isSame(moment(), 'day') ? '%%2%% Today' : \ '%%3%% Future'; ``` - This gives exactly the same output as `group by function task.due.category.groupText`, and is shown here in case you want to customise the behaviour in some way. - Group task due dates in to 5 broad categories: `Invalid date`, `Overdue`, `Today`, `Future` and `Undated`, displayed in that order. - Try this on a line before `group by due` if there are a lot of due date headings, and you would like them to be broken down in to some kind of structure. - Note that because we use variables to avoid repetition of values, we need to add `return` ```javascript group by function \ const date = task.due.moment; \ return \ (!date) ? '%%4%% ==Undated==' : \ !date.isValid() ? '%%0%% ==Invalid date==' : \ date.isBefore(moment(), 'day') ? '%%1%% ==Overdue==' : \ date.isSame(moment(), 'day') ? '%%2%% ==Today==' : \ '%%3%% ==Future=='; ``` - As above, but the headings `Invalid date`, `Overdue`, `Today`, `Future` and `Undated` are highlighted. - See the sample screenshot below. ```javascript group by function \ const date = task.due.moment; \ const now = moment(); \ const label = (order, name) => `%%${order}%% ==${name}==`; \ if (!date) return label(4, 'Undated'); \ if (!date.isValid()) return label(0, 'Invalid date'); \ if (date.isBefore(now, 'day')) return label(1, 'Overdue'); \ if (date.isSame(now, 'day')) return label(2, 'Today'); \ return label(3, 'Future'); ``` - As above, but using a local function, and `if` statements. ```javascript group by function \ const date = task.due.moment; \ const tomorrow = moment().add(1,'days'); \ const now = moment(); \ const label = (order, name) => `%%${order}%% ==${name}==`; \ if (!date) return label(5, 'Undated'); \ if (!date.isValid()) return label(0, 'Invalid date'); \ if (date.isBefore(now, 'day')) return label(1, 'Overdue'); \ if (date.isSame(now, 'day')) return label(2, 'Today'); \ if (date.isSame(tomorrow, 'day')) return label(3, 'Tomorrow'); \ return label(4, 'Future'); ``` - As above, but adds a heading for Tomorrow.  ![Tasks grouped by due date category, and then by due date|600](../images/tasks_custom_groups_categorise_dates.png) Sample image showing tasks grouped first by highlighted words `Overdue`, `Today`, `Future` and `Undated`, and then by individual due date. ### Done Date - `group by done` - The done date of the task, including the week-day, or `Invalid done date` or `No done date`. > [!released] > > - `done` grouping option was introduced in Tasks 1.7.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by done date** is now possible.  ```javascript group by function task.done.format("YYYY-MM-DD dddd") ``` - Like "group by done", except it uses an empty string instead of "No done date" if there is no done date.  For more examples, see [[#Due Date]]. ### Scheduled Date - `group by scheduled` - The scheduled date of the task, including the week-day, or `Invalid scheduled date` or `No scheduled date`. > [!released] > > - `scheduled` grouping option was introduced in Tasks 1.7.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by scheduled date** is now possible.  ```javascript group by function task.scheduled.format("YYYY-MM-DD dddd") ``` - Like "group by scheduled", except it uses an empty string instead of "No scheduled date" if there is no scheduled date.  For more examples, see [[#Due Date]]. ### Start Date - `group by start` - The start date of the task, including the week-day, or `Invalid start date` or `No start date`. > [!released] > > - `start` grouping option was introduced in Tasks 1.7.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by start date** is now possible.  ```javascript group by function task.start.format("YYYY-MM-DD dddd") ``` - Like "group by start", except it uses an empty string instead of "No start date" if there is no start date.  For more examples, see [[#Due Date]]. ### Created Date - `group by created` - The created date of the task, including the week-day, or `Invalid created date` or `No created date`. > [!released] `created` grouping option was introduced in Tasks 2.0.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by created date** is now possible.  ```javascript group by function task.created.format("YYYY-MM-DD dddd") ``` - Like "group by created", except it uses an empty string instead of "No created date" if there is no created date.  For more examples, see [[#Due Date]]. ### Cancelled Date - `group by cancelled` - The cancelled date of the task, including the week-day, or `Invalid cancelled date` or `No cancelled date`. > [!released] `cancelled` grouping option was introduced in Tasks 5.5.0. Since Tasks 5.5.0, **[[Custom Grouping|custom grouping]] by cancelled date** is now possible, using `task.cancelled`.  ```javascript group by function task.cancelled.format("YYYY-MM-DD dddd") ``` - Like "group by cancelled", except it uses an empty string instead of "No cancelled date" if there is no cancelled date.  For more examples, see [[#Due Date]]. ### Happens - `group by happens` - The earliest of start date, scheduled date, and due date, including the week-day, or `No happens date` if none of those are set. > [!released] `happens` grouping option was introduced in Tasks 1.11.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by happens date** is now possible.  ```javascript group by function task.happens.format("YYYY-MM-DD dddd") ``` - Like "group by happens", except it uses an empty string instead of "No happens date" if there is no happens date.  For more examples, see [[#Due Date]]. ## Group by Other Task Properties As well as the date-related groups above, groups can be created from properties in individual tasks. ### Description There is no built-in instruction to group by description. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by description** is now possible.  ```javascript group by function task.description ``` - group by description. - This might be useful for finding completed recurrences of the same task. ```javascript group by function task.description.toUpperCase() ``` - Convert the description to capitals. ```javascript group by function task.description.slice(0, 25) ``` - Truncate descriptions to at most their first 25 characters, and group by that string. ```javascript group by function task.description.replace('short', '==short==') ``` - Highlight the word "short" in any group descriptions.  ### Description without tags Since Tasks 4.2.0, it is possible to remove tags from the descriptions in custom groups, for use in **[[Custom Grouping|custom grouping]]**. The value `task.descriptionWithoutTags` returns a copy of the description with all the tags removed, so that you can group together any tasks whose descriptions differ only by their tags.  ```javascript group by function task.descriptionWithoutTags ``` - Like `group by description`, but it removes any tags from the group headings. - This might be useful for finding completed recurrences of the same task, even if the tags differ in some recurrences.  ### Priority - `group by priority` - The priority of the task, namely one of: - `Highest priority` - `High priority` - `Medium priority` - `Normal priority` - `Low priority` - `Lowest priority` > [!released] > > - `priority` grouping option was introduced in Tasks 1.11.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by priority name and number** is now possible. `task.priorityNameGroupText` was added in Tasks 4.9.0. Using the priority name:  ```javascript group by function task.priorityName ``` - Group by the task's priority name. - The priority names are displayed in alphabetical order. - Note that the default priority is called 'Normal', as opposed to with `group by priority` which calls the default 'None'. ```javascript group by function task.priorityNameGroupText ``` - Group by the task's priority name. - The priority names are displayed from highest to lowest priority. - Note that the default priority is called 'Normal', as opposed to with `group by priority` which calls the default 'None'.  Using the priority number:  ```javascript group by function task.priorityNumber ``` - Group by the task's priority number, where Highest is 0 and Lowest is 5.  ### Urgency - `group by urgency` ([[Urgency|urgency]]) - The groups run from the highest urgency to the lowest. - You can reverse this with `group by urgency reverse`. > [!released] > > - `urgency` grouping option was introduced in Tasks 3.6.0. > - In Tasks 4.0.0 the order of `group by urgency` was reversed, to put most urgent tasks first. Add or remove the word `reverse` to get the original order. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by urgency** is now possible.  ```javascript group by function task.urgency.toFixed(3) ``` - Show the urgency to 3 decimal places, unlike the built-in "group by urgency" which uses 2.  ### Recurrence - `group by recurring` - Whether the task is recurring: either `Recurring` or `Not Recurring`. - `group by recurrence` - The recurrence rule of the task, for example `every week on Sunday`, or `None` for non-recurring tasks. - Note that the text displayed is generated programmatically and standardised, and so may not exactly match the text in any manually typed tasks. For example, a task with `🔁 every Sunday` is grouped in `every week on Sunday`. > [!released] > > - `recurring` and `recurrence` grouping options were introduced in Tasks 1.11.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by recurrence** is now possible.  ```javascript group by function task.isRecurring ? "Recurring" : "Non-Recurring" ``` - Use JavaScript's ternary operator to choose what to do for true (after the ?) and false (after the :) values.   ```javascript group by function task.recurrenceRule.replace('when done', '==when done==') ``` - Group by recurrence rule, highlighting any occurrences of the words "when done".  ### Tags See [[Tags]] for important information about how tags behave in the Tasks plugin. - `group by tags` - The tags of the tasks or `(No tags)`. If the task has multiple tags, it will show up under every tag. > [!released] > > - `tags` grouping option was introduced in Tasks 1.10.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by tags** is now possible.  ```javascript group by function task.tags ``` - Like "group by tags" except that tasks with no tags have no heading instead of "(No tags)". ```javascript group by function task.tags.join(", ") ``` - Tasks with multiple tags are listed once, with a heading that combines all the tags. - Separating with commas means the tags are clickable in the headings. ```javascript group by function task.tags.sort().join(", ") ``` - As above, but sorting the tags first ensures that the final headings are independent of order of tags in the tasks. ```javascript group by function task.tags.filter( (tag) => tag.includes("#context/") ) ``` - Only create headings for tags that contain "#context/". ```javascript group by function task.tags.filter( (tag) => ! tag.includes("#tag") ) ``` - Create headings for all tags that do not contain "#tag".  These are more complicated examples, which you might like to copy if you use tasks with [nested tags](https://help.obsidian.md/Editing+and+formatting/Tags#Nested+tags) and wish to group them at different tag nesting levels.  ```javascript group by function task.tags.map( (tag) => tag.split('/')[0].replace('#', '') ) ``` - `#tag/subtag/sub-sub-tag` gives **`tag`**. ```javascript group by function task.tags.map( (tag) => tag.split('/')[1] ? tag.split('/').slice(1, 2) : '') ``` - `#tag/subtag/sub-sub-tag` gives **`subtag`**. ```javascript group by function task.tags.map( (tag) => tag.split('/')[2] ? tag.split('/').slice(2, 3) : '') ``` - `#tag/subtag/sub-sub-tag` gives **`sub-sub-tag`**. ```javascript group by function task.tags.map( (tag) => tag.split('/')[3] ? tag.split('/').slice(3, 4) : '') ``` - `#tag/subtag/sub-sub-tag` gives no heading, as there is no value at the 4th level. ```javascript group by function task.tags.map( (tag) => tag.split('/')[0] ) ``` - `#tag/subtag/sub-sub-tag` gives **`#tag`**. ```javascript group by function task.tags.map( (tag) => tag.split('/')[1] ? tag.split('/').slice(0, 2).join('/') : '') ``` - `#tag/subtag/sub-sub-tag` gives **`#tag/subtag`**. ```javascript group by function task.tags.map( (tag) => tag.split('/')[2] ? tag.split('/').slice(0, 3).join('/') : '') ``` - `#tag/subtag/sub-sub-tag` gives **`#tag/subtag/sub-sub-tag`**. ```javascript group by function task.tags.map( (tag) => tag.split('/')[3] ? tag.split('/').slice(0, 4).join('/') : '') ``` - `#tag/subtag/sub-sub-tag` gives no heading, as there is no value at the 4th level.  ### Original Markdown There is no built-in instruction to group by the original markdown line. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by original markdown line** is now possible. For example, this could be used to extract information from `task.originalMarkdown` that Tasks does not parse, to use for grouping tasks.  ```javascript group by function '``' + task.originalMarkdown + '``' ``` - Group by the raw text of the task's original line in the MarkDown file as code. - Note the pairs of backtick characters ('`'), to preserve even single backtick characters in the task line. - It's important to prevent the task checkbox (for example, '[ ]') from being rendered in the heading, as it gets very confusing if there are checkboxes on both headings and tasks. ```javascript group by function task.originalMarkdown.replace(/^[^\[\]]+\[.\] */, '') ``` - An alternative to formatting the markdown line as code is to remove everything up to the end of the checkbox. - Then render the rest of the task line as normal markdown.  ## Group by File Properties ### File Path - `group by path` (the path to the file that contains the task, that is, the folder and the filename) Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by file path** is now possible.  ```javascript group by function task.file.path ``` - Like 'group by path' but includes the file extension, and does not escape any Markdown formatting characters in the path. ```javascript group by function task.file.path.replace(query.file.folder, '') ``` - Group by the task's file path, but remove the query's folder from the group. - For tasks in the query's folder or a sub-folder, this is a nice way of seeing shortened paths. - This is provided to give ideas: it's a bit of a lazy implementation, as it doesn't check that `query.file.folder` is at the start of the line.  Since Tasks 5.1.0, the query's file path can be used conveniently in custom groups. - `query.file.path` or - `query.file.pathWithoutExtension` - Useful reading: [[Query Properties]]. ### Root - `group by root` (the top-level folder of the file that contains the task, that is, the first directory in the path, which will be `/` for files in root of the vault) > [!released] `root` grouping option was introduced in Tasks 1.11.0. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by root folder** is now possible.  ```javascript group by function task.file.root ``` - Like 'group by root' except that it does not escape any Markdown formatting characters in the root.  Since Tasks 5.1.0, the query's file root can be used conveniently in custom groups. - `query.file.root` - Useful reading: [[Query Properties]]. ### Folder - `group by folder` (the folder to the file that contains the task, which always ends in `/` and will be exactly `/` for files in root of the vault) Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by folder** is now possible.  ```javascript group by function task.file.folder ``` - Like 'group by folder', except that it does not escape any Markdown formatting characters in the folder. ```javascript group by function task.file.folder.slice(0, -1).split('/').pop() + '/' ``` - Group by the immediate parent folder of the file containing task. - Here's how it works: - '.slice(0, -1)' removes the trailing slash ('/') from the original folder. - '.split('/')' divides the remaining path up in to an array of folder names. - '.pop()' returns the last folder name, that is, the parent of the file containing the task. - Then the trailing slash is added back, to ensure we do not get an empty string for files in the top level of the vault.  Since Tasks 5.1.0, the query's folder can be used conveniently in custom groups. - `query.file.folder` - Useful reading: [[Query Properties]]. ### File Name - `group by filename` (the link to the file that contains the task, without the `.md` extension) - Note that tasks from different notes with the same file name will be grouped together in the same group. Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by file name** is now possible.  ```javascript group by function task.file.filename ``` - Like 'group by filename' but does not link to the file. ```javascript group by function task.file.filenameWithoutExtension + (task.hasHeading ? (' > ' + task.heading) : '') ``` - Like 'group by backlink' but does not link to the heading in the file.  Since Tasks 5.1.0, the query's file name can be used conveniently in custom groups. - `query.file.filename` or - `query.file.filenameWithoutExtension` - Useful reading: [[Query Properties]]. ### Backlink - `group by backlink` (the text that would be shown in the task's [[Backlinks|backlink]], combining the task's file name and heading, with a link) ### Heading - `group by heading` (the heading preceding the task, or `(No heading)` if there are no headings in the file) Since Tasks 4.0.0, **[[Custom Grouping|custom grouping]] by heading** is now possible.  ```javascript group by function (task.heading + '.md' === task.file.filename) ? '' : task.heading ``` - Group by heading, but only if the heading differs from the file name. - This works well immediately after a 'group by filename' line. - Note the three equals signs '===': these are important for safety in JavaScript.  ## Multiple groups You can add multiple `group by` query options, each on an extra line. This will create nested groups. The first group has the highest priority. Each subsequent `group by` will generate a new heading-level within the existing grouping: - First `group by` is displayed as `h4` headings - Second `group by` is displayed as `h5` headings - Third and subsequent `group by` are displayed as `h6` headings See the [[#Screenshots|screenshots below]] for how this looks in practice. > [!info] > Headings are displayed in case-sensitive alphabetical order, not the original order. ## Refining groups ### Reversing groups > [!released] > Reversing of group headings was introduced in Tasks 3.7.0. After the name of the property that you want to group by, you can add the `reverse` keyword. If given, the group headings will be reversed for that property. For example: - `group by due` will sort the group headings: - from **oldest** due date first... - to **newest** due date last - `group by due reverse` will sort the group headings: - from **newest** due date first... - to **oldest** due date last > [!tip] > The `reverse` keyword controls the order that group headings are displayed. > > The [[Sorting|sort by]] facility, by contrast, controls the order in which displays are displayed *inside* each group. ### Limiting group size You can limit the number of tasks in each group, perhaps to work on the most important things first. See [[Limiting#Limit number of tasks in each group|Limit number of tasks in each group]]. ## Notes > [!info] > The order of operations ensures that grouping does not modify which tasks are displayed, for example when the `limit` options are used: > > 1. all the filter instructions are run > 1. then any sorting instructions are run > 1. then any `limit` instructions are run > 1. then any grouping instructions are run > 1. then any `limit groups` instructions are run ## Screenshots ### Before Here is an example Tasks result, without any `group by` commands: ![Tasks Ungrouped](../images/tasks_ungrouped.png) Tasks not grouped. ### After And here is what this might look like, when grouped by folder, filename and heading: ![Tasks Grouped](../images/tasks_grouped.png) Tasks grouped. ## Examples Give me three levels of grouping, to indicate the locations of my tasks: ```tasks not done group by folder group by filename group by heading ``` Show me tasks I need to do today - and put today's tasks first, for visibility: ```tasks not done due before tomorrow group by due reverse ```