Basics
JS If Else
Conditional Statements in JavaScript
JavaScript if-else statements control flow, referencing ternary operators.
Introduction to If-Else Statements
The if-else statement in JavaScript is a fundamental control structure that allows you to execute different code blocks based on a condition. It evaluates a boolean expression and executes the associated block of code if the expression is true. If the expression is false, the code in the else block executes instead.
Basic Example of If-Else
Let's consider a simple example to understand how if-else works. We want to check whether a number is positive or not.
Multiple Conditions with Else If
When you have more than two possible outcomes, you can use else if to handle additional conditions. This allows for more complex logic.
Using Ternary Operators
The ternary operator is a shorthand method of writing an if-else statement. It is useful for simple conditional assignments or expressions.
Conclusion
Understanding if-else statements and the ternary operator is crucial for controlling the flow of a JavaScript application. They allow for decision-making capabilities in your code, enabling dynamic and responsive applications.
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