April 2018
Intermediate to advanced
284 pages
5h 46m
English
Content preview from Simplifying JavaScript
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| Tip 28 | Create Default Parameters |
In this tip, you’ll learn how to use default parameters to set values when a parameter is absent.
No matter how much planning you do, things change. This is especially true of function parameters. When you write a function, you expect a few parameters. Then, as code grows and edge cases emerge, suddenly the parameters you supplied aren’t enough.
In the next several tips, you’ll learn different techniques for handling parameters. Nearly all of these techniques can help you cope in some way with changing requirements. But to start, you’ll learn the easiest trick: setting default parameters.
Consider a basic helper function. All you want to do is convert pounds to kilograms. That seems simple. You simply need to ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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