find

find(Array<T>, Any): Array<Number>

Returns indices of an input that match a specified value.

This version of the function returns indices of an array. Others return indices of a string.

Parameters

Name Description

Name	Description
`elements`	An array with elements of any type.
`elementToFind`	Value to find in the input array.

elements

An array with elements of any type.

elementToFind

Value to find in the input array.

Example

This example finds the index of an element in a string array.

Source

%dw 2.0
output application/json
---
["Bond", "James", "Bond"] find "Bond"

Output

[0,2]

find(String, Regex): Array<Array<Number>>

Returns the indices in the text that match the specified regular expression (regex), followed by the capture groups.

The first element in each resulting sub-array is the index in the text that matches the regex, and the next ones are the capture groups in the regex (if present).

Note: To retrieve parts of the text that match a regex. use the scan function.

Parameters

Name Description

Name	Description
`text`	A string.
`matcher`	A Java regular expression for matching characters in the `text`.

text

A string.

matcher

A Java regular expression for matching characters in the text.

Example

This example finds the beginning and ending indices of words that contain ea

Source

%dw 2.0
output application/json
---
"I heart DataWeave" find /\w*ea\w*(\b)/

Output

[ [2,7], [8,17] ]

find(String, String): Array<Number>

Lists indices where the specified characters of a string are present.

Parameters

Name Description

Name	Description
`text`	A source string.
`textToFind`	The string to find in the source string.

text

A source string.

textToFind

The string to find in the source string.

Example

This example lists the indices of "a" found in "aabccdbce".

Source

%dw 2.0
output application/json
---
"aabccdbce" find "a"

Output

[0,1]