You can specify multiple conditions using AND – OR in an if statement in JavaScript. Just add them within the main bracket of the if statement.
if (id !== 1 && id !== 2 && id !== 3){... }The && operator “short-circuits” – that is, if the left condition is false, it doesn’t bother evaluating the right one.
Similarly, the || operator short-circuits if the left condition is true. With an OR (||) the operation, if any one of the conditions is true, the result is true.
JavaScript if and or
Simple example code mix and match conditions.
<!DOCTYPE html>
<html>
<body>
<body>
<script>
if ((10 > 20 && 10 > 30) || (10 > 5 && 10 > 3)) {
console.log('✅ at least one condition is met');
} else {
console.log('⛔️ neither condition is met');
}
</script>
</body>
</html>Output:
Using the logical AND (&&) operator
if (10 > 5 && 5 > 3) {
console.log('✅ all conditions are met');
} else {
console.log('⛔️ not all conditions are met');
}
Using logical OR (||)
if (5 > 10 || 2 > 10 || 10 > 5) {
console.log('✅ at least one condition is met');
} else {
console.log('⛔️ neither condition is met');
}Do comment if you have any doubts or suggestions on this Js condition statement topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version