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javaScript comparison and logical operators are fundamental components of the language, allowing developers to make decisions and control the flow of their code. In this article, we will delve into these operators, exploring their usage with examples to provide a comprehensive understanding.
JavaScript includes a variety of comparison operators that allow you to compare values. These operators return a Boolean value (true or false) based on the comparison. Let’s explore some common comparison operators:
let x = 5;
let y = "5";
console.log(x == y); // true
let a = 5;
let b = "5";
console.log(a === b); // false
let p = 10;
let q = "10";
console.log(p != q); // false
console.log(p !== q); // true
let m = 15;
let n = 10;
console.log(m > n); // true
console.log(m < n); // false
Logical Operators:
Logical operators in JavaScript allow you to combine or manipulate Boolean values. The three main logical operators are AND (&&), OR (||), and NOT (!).
let age = 25;
let hasLicense = true;
console.log(age > 18 && hasLicense); // true
let isWeekend = false;
let isHoliday = true;
console.log(isWeekend || isHoliday); // true
let isLogged = false;
console.log(!isLogged); // true
Understanding JavaScript comparison and logical operators is crucial for building robust and efficient code. By incorporating these operators into your scripts, you gain the ability to make informed decisions and control the execution flow of your programs. Practice with these examples and experiment in your own projects to solidify your understanding of these essential JavaScript concepts.