JavaScript comparison and logical operators compare values and evaluate expressions to return boolean values. In this tutorial, you will learn about JavaScript comparison and logical operators with the help of examples.
If you have, then you need to be usingJavaScript logical operators. The previous code can be rewritten like this: 1 varsomething=somethingElse||false; Logical OR Operator The logical OR operatorreturns the first true valueit finds (looking from left to right). If nothing is true in the sta...
Logical OperatorsLogical operators are used to determine the logic between variables or values.Given that x = 6 and y = 3, the table below explains the logical operators: OperatorDescriptionExampleTry it && and (x < 10 && y > 1) is true Try it » || or (x === 5 || y === ...
Logical Operators Bitwise Operators String Operators Miscellaneous Operators 1. JavaScript Arithmetic Operators We use arithmetic operators to perform arithmetic calculations like addition, subtraction, etc. For example, 5 - 3; // 2 Here, we used the - operator to subtract 3 from 5. Commonly Used ...
Logical operators are typically used with Boolean (logical) values. When they are, they return a Boolean value. However, the && and || operators actually return the value of one of the specified operands, so if these operators are used with non-Boolean v
Operators JavaScriptOperators ❮ PreviousNext ❯ Javascript operators are used to perform different types of mathematical and logical computations. Examples: TheAssignment Operator=assigns values TheAddition Operator+adds values TheMultiplication Operator*multiplies values...
Logical Operators 逻辑运算符通常用于Boolean型(逻辑)值。这种情况,它们返回一个布尔型值。然而,&&和||运算符实际上返回一个指定操作数的值,因此这些运算符也用于非布尔型,它们返回一个非布尔型值。 描述 下面是逻辑运算符的说明: Operator Usage Description Logical AND (&&) expr1 && expr2 Returns expr1 ...
Comparison and Logical operators are used to test for true or false.Comparison OperatorsComparison operators are used in logical statements to determine equality or difference between variables or values. Given that x = 5, the table below explains the comparison operators:OperatorDescriptionComparing...
The logical operators used in Javascript are listed below:OperatorUsageDescription Logical AND ( && ) a && b is true if both a and b are true. Logical OR ( || ) a || b is true if either a or b is true. Logical NOT ( ! ) !a is true if a is not true. JavaScript ...
The logical operators && and || have different semantics in JavaScript than in many other programming languages. They don't always return a boolean value!