![]() Using " NOT IN" is equivalent to using multiple NOT_EQUALS (!=) statements, but is shorter and more convenient. The " NOT IN" operator is used to search for content where the value of the specified field is not one of multiple specified values. If both operands are false, the result is false.Įxample 11: Logical NOT Operator const a = true, b = false || evaluates to true if either of the operands is true. To do so, in JavaScript, use conditional operators, such as less than equal to (<) or greater than (>), with the NOT () operator.Logical NOT: true if the operand is false and vice-versa.Įxample 9: Logical AND Operator const a = true, b = false Ĭonsole.log((c > 2) & (c 2) || (c<2)) // true Logical OR: true if either of the operands/boolean values is true. JavaScript provides three different value-comparison operations: strict equality (triple equals) loose equality (double equals) Object.is () Which operation you choose depends on what sort of comparison you are looking to perform. JavaScript Operators Previous Next The Addition Operator + adds numbers: The Assignment Operator assigns a value to a variable. Logical AND: true if both the operands/boolean values are true, else evaluates to false Logical operators perform logical operations: AND, OR and NOT. In JavaScript, 0 is false and all non-zero values are true. <= evaluates to true if the left operand is less than or equal to the right operand. Less than or equal to: true if the left operand is less than or equal to the right operand. < evaluates to true if the left operand is less than the right operand.Įxample 8: Less than or Equal to Operator const a = 2 >= evaluates to true if the left operand is greater than or equal to the right operand.Įxample 7: Less than Operator const a = 3, b = 2 > evaluates to true if the left operand is greater than the right operand.Įxample 6: Greater than or Equal to Operator const a = 3 The less than or equals operator returns Boolean true if the LHS is numerically less than or equal to the RHS. JavaScript will automatically perform type conversion for you when comparing two. It's because their types are different even though they have the same value.Įxample 5: Greater than Operator const a = 3 If you want to test if a value is less than, you can use the > operator. In the above example, 2 != '2' gives true. See the documentation for the Less than operator for a summary of this algorithm. It's the complete opposite of strictly equal =. The operands are compared using the Abstract Relational Comparison algorithm. ![]() != evaluates to true if the operands are strictly not equal. = evaluates to true if the operands are equal, however, = evaluates to true only if the operands are equal and of the same typeĮxample 4: Strict Not Equal to Operator const a = 2, b = 'hello' And = also checks for the data type while comparing. Here 2 and '2' are the same numbers but the data type is different. = evaluates to true if the operands are equal and of the same type. != evaluates to true if the operands are not equal.Įxample 3: Strict Equal to Operator const a = 2 If you mistakenly use = instead of =, you might get unwanted result.Įxample 2: Not Equal to Operator const a = 3, b = 'hello' Note: In JavaScript, = is a comparison operator, whereas = is an assignment operator. = evaluates to true if the operands are equal. Less than or equal to: true if the left operand is less than or equal to the right operandĮxample 1: Equal to Operator const a = 5, b = 2, c = 'hello' Less than: true if the left operand is less than the right operand Greater than or equal to: true if the left operand is greater than or equal to the right operand Greater than: true if the left operand is greater than the right operand ![]() Strict not equal to: true if the operands are equal but of different type or not equal at all Strict equal to: true if the operands are equal and of the same type Other similar operators are > (greater than or equal to), < (less than or equal to), (equal to), and (not equal to). Consider the following expression 7 + 5 12 Here, the values 7, 5, and 12 are operands, while + and are operators. The data on which operators work are called operands. Not equal to: true if the operands are not equal What is an Operator An operator defines some function that will be performed on the data.
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