Logical Operators
👨💼 Excellent! You can now combine conditions to build complex logic.
🦉 Quick reference:
| A | B | A && B | A || B |
|---|---|---|---|
true | true | true | true |
true | false | false | true |
false | true | false | true |
false | false | false | false |
JavaScript uses "short-circuit evaluation": - With
&&, if the first value is
false, JavaScript doesn't check the second - With ||, if the first value is
true, JavaScript doesn't check the secondThis becomes useful for patterns like
user && user.name to safely access
properties.You now have all the tools to build conditional logic!