What is the use of && operator in JavaScript ?
The &&
operator, known as the logical AND operator, is used to evaluate two operands and returns true
if both operands are true
, otherwise, it returns false
.
The Logical AND(&&) Operator can also be used on non-boolean values also. AND operator has higher precedence than the OR operator.
Syntax:
a&&b
Example: Here, x > 5
evaluates to true
because 7
is greater than 5
, and y < 10
evaluates to false
because 12
is not less than 10
. However, since the &&
operator requires both conditions to be true
, the console.log()
statement inside the if
block will not be executed. Instead, the code inside the else
block will be executed, printing “At least one condition is false.”
Javascript
let x = 7; let y = 12; if (x > 5 && y < 10) { console.log( "Both conditions are true." ); // This line will not be executed } else { console.log( "At least one condition is false." ); } |
Output
At least one condition is false.
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