<!doctype html> JavaScript logical NOT operator example with DOM h1 { color:red; border-bottom: 3px groove silver; padding-bottom: 8px; } JavaScript logical NOT operator example CopyJS Codevar a = 20; var b = 5; var newParagraph = document.createElement("p"); //creates ...
Logical NOT (!)(Yes)(Yes)(Yes)(Yes)(Yes)(Yes) See also Bitwise operators Boolean Document Tags and Contributors Tags: JavaScript operator Operator Contributors to this page:ntxt,alexbaumgertner,fscholz,stevemao,syrrim,cliffordfajardo,tamilvendhank,NexusStar,Mori,Havvy,Delapouite,DuncanMacWeb,a...
TypeScript logical operators are similar to what we have learned in JavaScript logical operators. These operators help in comparing boolean expressions and producing a single boolean value as result. 1. Logical Operators Operator Description Logical AND operator – && If both operands (or expressions)...
1. JavaScript Equal To OperatorThe equal to operator == evaluates totrue if the values of the operands are equal. false if the values of the operands are not equal.For example,// same value, same type console.log(5 == 5); // true // same value, different type console.log(2 == ...
! not !(x == y) is true Try it »Conditional (Ternary) OperatorJavaScript also contains a conditional operator that assigns a value to a variable based on some condition.Syntaxvariablename = (condition) ? value1:value2 Examplevar voteable = (age < 18) ? "Too young":"Old enough"; ...
OperatorNameDescriptionExampleTry it && Logical and Returns true if both statements are true x < 5 && x < 10 Try it » || Logical or Returns true if one of the statements is true x < 5 || x < 4 Try it » ! Logical not Reverse the result, returns false if the result is ...
OperatorDescriptionExampleTry it && and (x < 10 && y > 1) is true Try it » || or (x == 5 || y == 5) is false Try it » ! not !(x == y) is true Try it »Conditional (Ternary) OperatorJavaScript also contains a conditional operator that assigns a value to a ...
In JavaScript, any expression or statement that expects a boolean value will work with a truthy or falsy value, so the fact that && does not always return true or false does not cause practical problems. Notice that the description above says that the operator returns “a truthy value” or...
NotificationEventFieldOperator NotificationEventFieldType NotificationEventPublisher NotificationEventRole NotificationEventType NotificationEventTypeCategory NotificationJobDiagnosticLog NotificationOperation NotificationQueryCondition NotificationReason NotificationReasonType NotificationRestClient NotificationResult NotificationResults...
('setter called');x=value;}};// This always logs "setter called"obj.x+=1;assert.equal(obj.x,1);// Logical operators do not call setters unnecessarily// This will not log.obj.x||=2;assert.equal(obj.x,1);// But setters are called if the operator does not short circuit// "...