“Programs must be written for people to read, and only incidentally for machines to execute.”
— Harold Abelson, Structure and Interpretation of Computer Programs
Logical operators are generally symbols or words which connect two or more expressions that allow a program to make a decision based on a given set of conditions.
Logical operators usually control the program flow and are frequently used with the if, while, or some other control statement.
//Example
let a, b;
a = 3; b = 4;
console.log(a === 3 && b === 4) //TRUE
console.log(a === 3 && b === 3) //FALSE2. Logical OR operator ( || ): For logical OR operators, one of the operands just have to be true for the statement to be true.
//Using variables from our first example
console.log(a === 3) || (b === 4) //TRUE
console.log(a === 3) || (b === 3) //TRUE
3. Logical NOT operator ( ! ): This is used to reverse the logical state of its operands. If a condition is true, then the Logical Not will make it false.
//Using variables from our previous example
console.log(!(a === 3)) //FALSE| LANGUAGE | AND | OR | NOT |
| C++ | && | || | ! |
| C# | && | || | ! |
| Java | && | || | ! |
| JavaScript | && | || | ! |
| PHP | && | || | ! |
| Python | and | or | not |
| Swift | && | || | ! |
QR codes have evolved from a niche tracking technology to an indispensable digital connector, seamlessly…
Artificial Intelligence (AI) has made remarkable progress in recent years, transforming industries such as healthcare,…
Climate change is one of the most pressing challenges of our time, with rising global…
In the last few decades, technology has become so embedded in our daily lives that…
In recent years, drones have become more than just cool gadgets or tools for tech…
Looking to build mobile apps in Abuja? Choosing the right framework is crucial for performance,…