Logical OR (||) - JavaScript | MDN - MDN Web Docs
WEBSep 25, 2023 · The logical OR (||) (logical disjunction) operator for a set of operands is true if and only if one or more of its operands is true. It is typically used with boolean (logical) values. When it is, it returns a Boolean value. However, the || operator actually returns the value of one of the specified operands, so if this operator is used with non-Boolean …
What is JavaScript? - Learn web development | MDN
WEBJan 24, 2024 · JavaScript is a scripting language that enables you to create dynamically updating content, control multimedia, animate images, and pretty much everything else. (Okay, not everything, but it is amazing …
Which equals operator (== vs ===) should be used in …
WEBDec 11, 2008 · Reference: JavaScript Tutorial: Comparison Operators. The == operator will compare for equality after doing any necessary type conversions. The === operator will not do the conversion, so if two …
JavaScript - Wikipedia
WEBJavaScript ( / ˈdʒɑːvəskrɪpt / ), often abbreviated as JS, is a programming language and core technology of the Web, alongside HTML and CSS. 99% of websites use JavaScript on the client side for webpage behavior. [10] Web browsers have a dedicated JavaScript engine that executes the client code.
Increment (++) - JavaScript | MDN - MDN Web Docs
WEBAug 15, 2023 · The ++ operator is overloaded for two types of operands: number and BigInt. It first coerces the operand to a numeric value and tests the type of it. It performs BigInt increment if the operand becomes a BigInt; otherwise, it performs number increment. If used postfix, with operator after operand (for example, x++ ), the increment operator ...
Remainder (%) - JavaScript | MDN - MDN Web Docs
WEBAug 25, 2023 · To obtain a modulo in JavaScript, in place of n % d, use ((n % d) + d) % d. In JavaScript, the modulo operation (which doesn't have a dedicated operator) is used to normalize the second operand of bitwise shift operators ( << , >> , etc.), making the offset always a positive value.
JavaScript Comparison and Logical Operators - W3Schools
WEBWhen comparing a string with a number, JavaScript will convert the string to a number when doing the comparison. An empty string converts to 0. A non-numeric string converts to NaN which is always false. When comparing two strings, "2" will be greater than "12", because (alphabetically) 1 is less than 2.
The Modern JavaScript Tutorial
WEB2 days ago · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.
Inequality (!=) - JavaScript | MDN - MDN Web Docs
WEBAug 15, 2023 · The inequality operator checks whether its operands are not equal. It is the negation of the equality operator so the following two lines will always give the same result: js. x != y; !(x == y); For details of the comparison algorithm, see the page for the equality operator. Like the equality operator, the inequality operator will attempt to ...
JavaScript Arrow Function - W3Schools
WEBWhat About this?. The handling of this is also different in arrow functions compared to regular functions.. In short, with arrow functions there are no binding of this. In regular functions the this keyword represented the object that called the function, which could be the window, the document, a button or whatever.. With arrow functions the this keyword …
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