Objects (dw::core::Objects)
This module contains helper functions to work with Objects.
It processes both keys and values as a tuple.
To use this module, you must import it to your DataWeave code, for example, by adding the line import * from dw::core::Objects to the header of your DataWeave script.
We will start with a brief review of filterObject, used to remove key-value pairs from an Object based on some criteria much like filter is used in Arrays.
We’ll then discuss mapObject, which is used to transform every key-value pair into something else.
We’ll also go over pluck, a function that goes from Objects to Arrays and is very useful when combined with the groupBy function we learned on the previous tutorial.
Functions
| Name | Description |
|---|---|
| divideBy | Breaks up an object into sub-objects that contain the specified number of key-value pairs. |
| entrySet | Returns an array of key-value pairs that describe the key, value, and any attributes in the input object. |
| everyEntry | Returns true if every entry in the object matches the condition. |
| keySet | Returns an array of key names from an object. |
| mergeWith | Appends any key-value pairs from a source object to a target object. |
| nameSet | Returns an array of keys from an object. |
| someEntry | Returns true if at least one entry in the object matches the specified condition. |
| takeWhile | Selects key-value pairs from the object while the condition is met. |
| valueSet | Returns an array of the values from key-value pairs in an object. |
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