FAQ: Conditional Statements - Logical Operators


#1

This community-built FAQ covers the “Logical Operators” exercise from the lesson “Conditional Statements”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Web Development

Introduction To JavaScript

FAQs on the exercise Logical Operators

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#2

How could I negate the value of the entire statement with ! as per additional experementing advice? It’s not like with the previous example where there is a boolean set in variable. So how can I use the bang operator on the two comparisons to negate them?


#3

we could simple use the bang operator at both conditions:

console.log( !false && !false );

or we can use the order of operations to our advantage:

console.log( !(false && false) );

parentheses are evaluated first, so the order is:

parentheses -> and operator -> bang operator


#4

It is not a bang operator in JavaScript, but in Ruby. In JS it is the NOT operator.

Any truthy expression in any form will be cast to a boolean and negated, so will yield, false. The opposite will happen when we negate a falsy expression and will yield, true.