Page History

Versions Compared

Key

This line was added.
This line was removed.
Formatting was changed.

Panel

Supported list types

Table of Contents

exclude	(Supported list types).*
style	circle
type	flat
separator	pipe

Number list

UI Text Box

size	medium
type	info

This function filters a number list by a given logical expression where ^ is used for referencing the current list value.

It basically iterates over each list element, checks whether the logical expression returns true, and if it does, includes the element in the output.

Code Block

language	bash
title	Syntax
linenumbers	true

filterByPredicate(numberList, logicalExpression) #Output: Number list

UI Expand

title	Examples

Parser expression

Description

Code Block

language	bash
linenumbers	true

filterByPredicate([1, 2, 3, 4], ^ > 2)

This example returns a number list with values greater than 2:

[3, 4]

Code Block

language	bash
linenumbers	true

filterByPredicate([1, 2, 3, 4], modulus(^, 2) = 0)

This example returns a number list with even values:

[2, 4]

To achieve this, the following functions are used:

modulus()

UI Text Box

type	tip

For additional mathematical functions, see Numbers.

UI Expand

title	Additional information

Parameters used in this function

Parameter Input (data type) Description

numberList

Status


subtle	true
title	number list

Any given number list.

logicalExpression

Status


subtle	true
title	text

A logical expression that returns true or false.

^ is used for referencing the field codes of the seed issue.

UI Expand

title	Output

This function returns a

Status


subtle	true
title	number list

Text list

UI Text Box

size	medium
type	info

Variant for text lists. The current list value is referenced by ^%.

Code Block

language	bash
title	Syntax
linenumbers	true

filterByPredicate(textList, logicalExpression) #Output: Text list

UI Expand

title	Examples

Parser expression

Description

Code Block

language	bash
linenumbers	true

filterByPredicate(["book", "rose", "sword"], length(^%) > 4)

This example returns a text list with words that have more than 4 characters:

["sword"]

Code Block

language	bash
linenumbers	true

filterByPredicate(["book", "rose", "sword"], ^% in %{issue.summary} OR ^% in %{issue.description})

This example returns a text list with those words that also appear in the issue's summary or description.

UI Expand

title	Additional information

Parameters used in this function

Parameter Input (data type) Description

textList

Status


subtle	true
title	text list

Any given text list.

logicalExpression

Status


subtle	true
title	text

A logical expression that returns true or false.

^% is used for referencing the field codes of the seed issue.

UI Expand

title	Output

This function returns a

Status


subtle	true
title	text list

Issue list

UI Text Box

size	medium
type	info

Variant for issue lists.

Code Block

language	bash
title	Syntax
linenumbers	true

filterByPredicate(issueList, logicalExpression) #Output: Issue list

UI Expand

title	Examples

Parser expression

Description

Code Block

language	bash
linenumbers	true

filterByPredicate(linkedIssues(), ^%{issue.summary} ~ %{issue.summary})

This example returns an issue list with linked issues (see linkedIssues()) that have the same summary like the current issue.

Code Block

language	bash
linenumbers	true

filterByPredicate(issuesUnderEpic(), ^%{issue.assignee} = null)

This example returns an issue list with all unassigned issues under the current epic (see issuesUnderEpic()).

Code Block

language	bash
linenumbers	true

filterByPredicate(linkedIssues("blocks"), ^%{issue.resolution} = null AND ^{issue.priority} < {issue.priority})

This example returns an issue list with unresolved blocked issues with a higher priority than the current issue.

UI Expand

title	Additional information

Parameters used in this function

Parameter Input (data type) Description

issueList

Status


subtle	true
title	issue list

Any given issue list. Usually this value is retrieved from a function (e.g. linkedIssues() or subtasks()).

blogicalExpression

Status


subtle	true
title	text

A logical expression that returns true or false.

^% is used for referencing the field codes of the seed issue.

UI Expand

title	Output

This function returns an

Status


subtle	true
title	issue list

UI Text Box

type	tip

This is one of the most powerful functions in JWT since it combines filtering with boolean or logical expressions.

To freshen up your knowledge or to get some inspiration head over to:

Logical mode

Use cases and examples

Page properties report

firstcolumn	Use case
headings	JWT feature, Workflow function, Field type, Automated action, Parser functions
cql	label = "parser_func_filterbypredicate" and space = currentSpace()

Page properties

hidden	true
id	1

Parser function cloud

Map

Notes

Workaround

Text list

Code Block

language	bash

let list = ["abc", "def", "ghij", "klmn"];
list.filter(t=> t.length>3)

Number list

Code Block

language	bash

let list = [3,2,5,1,6,0];
list.filter(t=> t>3)

Issue list

Code Block

language	bash

let current = issue;
let list = issue.links.map(l=>l.linkedIssue);
list.filter(i=>i.priority>=issue.priority)

It won't be possible to use the seed itself, but as long as you have the current issue and the list of issues in variables, it's possible to replicate the functionality.

Page properties

hidden	true

Status

Tech review

Status

colour	Green
title	done

Style guide

Status

colour	Green
title	done

Status

title	todo

Status

colour	Yellow
title	Ready for review

Status

colour	Green
title	done

Status

colour	Red
title	flagged

Page properties

hidden	true

Short description

Filters a number, issue, or a text list by a given logical expression.

Output

Status


subtle	true
title	list

Available since

Status

subtle	true
colour	Blue
title	2.1.32

Label

Status


colour	Red
title	staff pick

Content

Space Tools

Versions Compared

Old Version 32

New Version 33

Key

Supported list types

Number list

Text list

Issue list

Use cases and examples

Workaround