Functions act as placeholders for the data they output. Basically, you can assign the output of a function to a variable, just like any normal data.The core concept of this lesson is to learn how to call a function and assign the return value to a variable. FreeCodeCamp offers a curriculum and in this video we cover their lesson called Assignment with a Returned Value. All changes in ownership require that property owners notify their Assessor as soon as possible to avoid potential interest charges or other penalties. We can take the return value of a function and assign it to a variable. Assume we have pre-defined a function sum which adds two numbers together. Original documentation will be returned upon request. Feedback Delivered Instantly. Return graded assignments with a single click (optional).