This book does contain a few bits of information about Code::Blocks because it must in order for the reader to follow the examples. ![]() In addition, Code::Blocks enjoys great community support and has a large enough user base that it’ll be around for a long time. This particular IDE works on all of the platforms that the book supports (Mac, Linux, and Windows) in a similar fashion, so one set of instructions works for everyone. (In fact, there are two: one for mobile development and another for desktop development, this post is specific to Code::Blocks, which is used at the desktop.) Because I want the book to work well on all platforms, I’ve chosen Code::Blocks as the IDE for this book. In fact, in a few of my language books I’ve stopped mentioning any sort of IDE except in passing (and sometimes not at all).Ĭ++ All-In-One for Dummies, 4th Edition is a little different from most of my language books in that it must make mention of an IDE in order for the reader to follow all of the examples. Most readers don’t want to read about anything other than the language. Over the years, I’ve come to appreciate the landslide of comments I receive about my language books when they deviate to discuss topics other than the language. One reader may be somewhat knowledgeable and not need tutorials, another reader might me a complete novice and require more assistance. Sometimes it’s hard to know precisely how to cover information in a book because each reader’s needs are different. Similarly, in an OR expression ( expr1 || expr2), if expr1 is true, JavaScript won't evaluate expr2 because the overall result will be true regardless of expr2's value.Īnd that's a wrap, folks! We've explored the fascinating world of JavaScript if-else statements together, and you've gained valuable skills to tackle decision-making scenarios in your coding projects.įrom understanding conditional logic and mastering the if-else syntax to juggling multiple conditions with else-if chains and nested if-else blocks, you're now equipped to handle various real-world situations with ease.This is an update of a post that originally appeared on Febru. For example, in an AND expression ( expr1 & expr2), if expr1 is false, JavaScript won't evaluate expr2 because the overall result will be false regardless of expr2's value. ![]() When evaluating an expression with the '&' (AND) or '||' (OR) operators, JavaScript will stop evaluating as soon as the result is determined. Short-circuit evaluation is a technique used by JavaScript (and other programming languages) to evaluate logical expressions. These examples are just the tip of the iceberg! As you work on more JavaScript projects, you'll find that if-else statements are incredibly versatile and can be used in countless ways to make your code smarter and more dynamic. We'll start with the 'if' keyword, which is like the code's way of saying, "Hey, if this condition is true, then do this thing!" Here's the basic structure: if (condition) `) ĬalculatePrice("medium", 3) // Output: The final price is $45 We'll walk through it step-by-step, and I promise you'll be an if-else pro in no time! The 'if' keyword: Let's dive into the syntax of the if-else statement in JavaScript. Breaking Down the If-Else Syntax: A Step-by-Step Guide For more information, read our affiliate disclosure. If you click an affiliate link and subsequently make a purchase, we will earn a small commission at no additional cost to you (you pay nothing extra). Important disclosure: we're proud affiliates of some tools mentioned in this guide. ![]()
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