mergeWith

mergeWith<T <: Object, V <: Object>(source: T, target: V): ?

Appends any key-value pairs from a source object to a target object.

If source and target objects have the same key, the function appends that source object to the target and removes that target object from the output.

Parameters

Name Description

Name	Description
`source`	The object to append to the `target`.
`target`	The object to which the `source` object is appended.

source

The object to append to the target.

target

The object to which the source object is appended.

Example

This example appends the source objects to the target. Notice that "a" : true, is removed from the output, and "a" : false is appended to the target.

Source

%dw 2.0
import mergeWith from dw::core::Objects
output application/json
---
{ "mergeWith" : { "a" : true, "b" : 1} mergeWith { "a" : false, "c" : "Test"} }DataWeave

Output

"mergeWith": {
    "b": 1,
    "a": false,
    "c": "Test"
}JSON

mergeWith<T <: Object>(a: Null, b: T): T

Helper function that enables mergeWith to work with a null value.

mergeWith<T <: Object>(a: T, b: Null): T

Helper function that enables mergeWith to work with a null value.