Table of Contents
List Helper
What is List Helper Entity
A list is a collection of data or objects, and the list helper entity allows you to carry out various operations on the list data, such as adding, searching, and removing items.
Built-in operations in List Helper Entity
This topic describes the list of operations that can be performed on a List Helper entity in the Backflipt platform.
| List Helper Operation | Description |
|---|---|
| Add Items | It can be used to add items to the existing list. |
| Count Items | It can be used to count the number of items in the list. |
| Unique Items | It can be used to output the unique items within the list. |
| Flatten | It can be used to merge all the sub-lists of a list into a single list. |
| Join | It can be used to output a string by combining all the elements of a list. The elements are separated by the given delimiter. |
| Zip Object | Takes two lists, one for key and the other for value, and creates a key-value pair object out of them. If the two arrays are of different lengths, it will exclude the entries of the longer array. |
| Group By | It can be used to group the data by one of its attributes like say the key. It returns an object consisting of lists grouped by the key. |
| Rename Keys | It can be used to rename all the keys in the list. |
| Remove Keys | It can be used to remove elements from the array corresponding to the specified key. |
| Filter Keys | It can be used to filter a specific element from an array corresponding to the specified key. |
| Get Last Element | It can be used to return the last element of the list. |
| Index by | In the list of groups, the Key provided in the By Path field is used to map each object with the value of the key property in that object. |
| Cleanup Null or Empty Values | It can be used to remove all the empty values or null values from a list. |
| Remove values | It can be used to remove the specified values from a list. |