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--

--(Array<S>, Array<Any>): Array<S>

Removes specified values from an input value.

This version of -- removes specified items from an array. Other versions act on objects, strings, and the various date and time formats that are supported by DataWeave.

Name

Description

source

The array containing items to remove.

toRemove

Items to remove from the list.

Example

This example removes specified items from an array. Specifically, it removes all instances of the items listed in the array on the right side of -- from the array on the left side of the function, leaving [0] as the result.

Source

%dw 2.0
output application/json
---
{ "a" : [0, 1, 1, 2] -- [1,2] }

Output

{ "a": [0] }

--({ (K)?: V }, Object): { (K)?: V }

Removes specified key-value pairs from an object.

Parameters

Name Description

source

The object to remove.

toRemove

Objects to remove from the source object.

Example

This example removes a key-value pair from the source object.

Source

%dw 2.0
output application/json
---
{ "hello" : "world", "name" : "DW" } -- { "hello" : "world"}

Output

{ "name": "DW" }

--(Object, Array<String>)

Removes specified key-value pairs from an object.

Parameters

Name Description

source

The source object (an Object type).

toRemove

Keys for the key-value pairs to remove from the source object.

Example

This example removes two key-value pairs from the source object.

Source

%dw 2.0
output application/json
---
{ "yes" : "no", "good" : "bad", "old" : "new" } -- ["yes", "old"]

Output

{ "good": "bad" }

--(Object, Array<Key>)

Removes specified key-value pairs from an object.

Parameters

Name Description

source

The source object (an Object type).

keys

A keys for the key-value pairs to remove from the source object.

Example

This example specifies the key-value pair to remove from the source object.

Source

%dw 2.0
output application/json
---
{ "hello" : "world", "name" : "DW" } -- ["hello" as Key]

Output

{ "name": "DW" }