first function. Collection.(Power Automate Cloud flows)

10/08/2023

Japanese version.

Function to get the first item in an array.

first also has a separate function of the same name to get the first character of the text.

It works in the opposite way to last.

Spec

first(<collection>)
ArgumentDefaultDescription
collectionRequired fieldTarget arrray.

How to use

In most cases, it is used to initialize or set variables.

The type depends on the data handled by the array.

Clicking on first in the "Expression" tab sets the function name and () in the formula field.

You can change the contents of the function by clicking on the purple icon.

When dynamic content or variables are used in expressions, special specifications are required.

(How to get dynamic content with expressions.)

Examples of arguments and results

In this case, array variables [100,200,300] are provided as an example.

IndexValue
0100
1200
2300

For example, first(variables('array')) will result in 100.

Since the array item data type in this example is integer, "Type" should be "Integer".

For those who want to learn Power Automate Cloud flow effectively

The information on this site is now available in an easy-to-read e-book format.

Or Kindle Unlimited (unlimited reading).

You willl discover how to about basic operations.

By the end of this book, you will be equipped with the knowledge you need to use Power Automate Cloud flow to streamline your workflow.

Links

Collection Functions(Power Automate Cloud flows)