Page History

Versions Compared

Key

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

Page properties

hidden	true

Status

Tech review

Status

title	todo

Style guide

Status

title	todo

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 descriptionReturns a Statussubtletruetitlelist in l that validate predicate.Output Statussubtletruetitlelist Panel

Supported list types

Table of Contents

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

Number list

in l that validate predicate.Argument predicate is a boolean expression, where filters a number list by a given logical expression where ^ is used for referencing numeric values in argument lthe 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.

UI Text Box

size	medium
type	info

The This function returns a

Status

subtle

true

title

number list

Code Block

language	bash
title	Syntax
linenumbers	true

filterByPredicate(number list lnumberList, boolean expression predicatelogicalExpression) #Output: Number list

UI Expand

title	Examples

Parser expression

Description

Code Block

language	bash
linenumbers	true

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

The function returns a

Status

subtle	true
title	number list

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

[3, 4]

Code Block

language	bash
linenumbers	true

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

The function returns a

Status

subtle	true
title	number list

of 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

<parameter>numberList

Status


subtle	true
title	data type	number list

Any given number listParameter description.

<parameter>logicalExpression

Status

title

subtle	true

data type

text

A logical expression that returns true or false.

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

Parameter description

UI Expand

title	Output

The This function returns a

Status


subtle	true
title	number list

Text list

with texts in l that validate predicate. Argument predicate is a boolean expression, where ^% is used for referencing string values in argument lVariant for text lists. The current list value is referenced by

^%.

UI Text Box

size	medium
type	info

Returns a

Status

subtle

true

title

text list

Code Block

language	bash
title	Syntax
linenumbers	true

filterByPredicate(string list ltextList, boolean expression predicatelogicalExpression) #Output: Text list

UI Expand

title	Examples

: ["sword"]

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

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:

The function returns a

Status

subtle

true

title

text list

Code Block

language	bash
linenumbers	true

filterByPredicate(["book", "rose", "sword"], ^% in %{00000issue.summary} OR ^% in %{00001issue.description})

The function returns a

Status

subtle

true

title

UI Expand

title	Additional information

Parameters used in this function

Parameter Input (data type) Description

<parameter>textList

Status


subtle	true
title	data type	text list

Any given text listParameter description.

<parameter>logicalExpression

Status

title

subtle	true

data type

text

A logical expression that returns true or false.

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

Parameter description

UI Expand

title	Output

The This function returns a

Status


subtle	true
title	text list

Issue list

UI Text Box

size	medium
type	info

The function returns an

Status

subtle	true
title	Issue list

with issues in l whose cardinality (i.e., the number of times it appears in list l) satisfies the comparison cardinality operator n.

Available comparison operators: =, !=, <, <=, > and >=.Variant for issue lists.

Code Block

language	bash
title	Syntax
linenumbers	true

filterByCardinality(issue list l, comparison operator operator, number nfilterByPredicate(issueList, logicalExpression) #Output: Issue list

UI Expand

title	Examples

with all issues linked to current issue with 2 or more issue links

Parser expression

Description

Code Block

language	bash
linenumbers	true

filterByCardinalityfilterByPredicate(linkedIssues(), >, 1^%{issue.summary} ~ %{issue.summary})

The function returns an

Status

subtle

true

title

issue list

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

<parameter>issueList

Status


subtle	true
title	data type

Parameter description.

issue list

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

blogicalExpression<parameter>

Status

title

subtle	true

data type

Parameter description.

	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

title

subtle	true

data type

Parameter description.

UI Expand

title	Output

	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

Image AddedUse 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

issue list

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

The function returns an

Status

subtle

true

title

Content

Space Tools

Versions Compared

Old Version 13

New Version Current

Key

Supported list types

Number list

Text list

Issue list

Image AddedUse cases and examples

Workaround