LinkedIn principal author Doug Winnie explains how you can customize a function with parameters. Using parameters, a programmer can modify how a function works by changing variables within it to customize to specific situations. A function can be defined to accept one or more parameters and then refer to them throughout the code that is inside of it.
- When we create functions, we take actions…and group them together and give them a name.…We can then call those actions using the function name…and run them as often as we need in our code…but sometimes, we want to customize the steps a little bit…based on information we might have.…Take the example of calculating an order total.…Before we calculate a total,…there are things like sales tax and shipping cost…that might need to be added to the order…to give the total cost.…So, in our program, we have a variable…that contains the price of all the items…that are being purchased.…
We have a function that then calculates the total cost,…inside, we add a standard shipping fee…and calculate the sales tax at 8%…but sales tax rates aren't the same everywhere.…Some places have no sales tax,…some cities add to the state sales tax,…and there can be more variations.…So, we need to have a way to take the function…for calculating the total cost and modify it.…We can do this by using parameters.…It works this way.…
When we call the function that contains the code…
Author
Doug Winnie
Released
11/28/2016Join Doug Winnie as he explains the principles of programming and helps you connect to core concepts by exploring three ways that programmers perform their jobs. Doug starts by sharing the history of coding and then dives into functions, values, variables, and parameters used to define actions. He covers capturing input from users, creating conditional tests, using loops with arrays, and object-oriented programming basics. He also takes you beyond programming, into processes like debugging, refactoring, and building iteratively.
- Working with values and variables
- Breaking down tasks
- Customizing functions and parameters
- Building conditional tests
- Creating and changing arrays
- Working with objects and classes
- Debugging and refactoring code
- Going beyond the code as a programmer
Skill Level Beginner
Duration
Views
-
Introduction
-
Welcome1m 40s
-
What you should know1m 3s
-
-
1. Control Computers with Code
-
History of programming2m 9s
-
Forms of programming5m 12s
-
-
2. Define Actions Using Code
-
Break down tasks2m 29s
-
Variables and scope2m 9s
-
Return values from functions2m 15s
-
Work with an API1m 27s
-
3. Repeat Actions and Test for Conditions
-
Capture input from the user3m 31s
-
Create conditional tests4m 39s
-
Use while loops2m 11s
-
Use for loops3m 11s
-
Use loops with arrays2m 5s
-
-
4. Objects and OOP
-
Everything is an object2m 21s
-
Everything is a class4m 3s
-
Extend classes2m 7s
-
-
5. Beyond Programming
-
Debug problems2m 50s
-
-
Conclusion
-
Next steps1m 19s
-
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.
Share this video
Embed this video
Video: Customize functions with parameters