The
transform() function iterates over a collection and callback each item in the collection, the items inside the collection are replaced by the new callback values. It is similar to the
JavaScript map() function but the values got replaced in
transform() function.
In JavaScript, the array is first converted to a collection and then the function is applied to the collection.
Syntax:
data.transform(item, key)
Parameters: This function accepts two parameter as mentioned above and described below:
- item: This parameter holds the collection item.
- key: This parameter holds new operational value.
Return Value: Returns an modified array which is created by this function.
Below examples illustrate the
transform() function in collect.js
Example 1: Here in this example, we take a collection and then using the
transform() function modified the values using the
key transformation parameter and return the new value.
Output:
[5 , 10 , 15 , 20 , 25 ]
Example 2: Same thing we have done here as above example.
