Use the logical OR ( || ) operator in the if statement, if one or both of the conditions are true, then the code inside the if statement will execute in JavaScript.
if (A || B){
// code
}JavaScript if or
Simple example code isSale variable is set to false, the code inside the if block will still execute because the credit variable is set to true.
<!DOCTYPE html>
<html>
<body>
<script>
const credit = true;
const isSale = false;
if (credit || isSale) {
console.log("Can do shopping.");
} else {
console.log("Can not do shopping.");
}
</script>
</body>
</html>Output:
How to use OR condition in a JavaScript IF statement?
Answer: More than one condition statement is needed to use OR(||) operator in if conditions and notation is ||.
if(condition || condition){
some stuff
}If you have multiple conditions that you want to check against, you can use logical operators like && (AND), || (OR), and ! (NOT) to combine conditions within the if statement.
For example:
let hour = 12;
let greeting;
if (hour < 12) {
greeting = "Good morning";
} else if (hour >= 12 && hour < 18) {
greeting = "Good afternoon";
} else {
greeting = "Good evening";
}
console.log(greeting);
In this case:
- If
houris less than 12, it prints “Good morning”. - If
houris greater than or equal to 12 and less than 18, it prints “Good afternoon”. - Otherwise, it prints “Good evening”.
Do comment if you have any doubts or suggestions on this JS if statement with OR operator code.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version