Most usually, programmers use this operator to check if both conditions are true, for example: true && true // returns true true && false // returns false However, in JavaScript, it is extended to …

Oct 14, 2012 · I just saw someone use this piece of code: ctx = canvas.getContext && canvas.getContext('2d'); How does the double ampersand work in this context? Would it not …

Oct 27, 2012 · Sometimes \u0026, &#38, %26, &amp, or <![CDATA[ ... ]]> work for ampersands in script blocks in xhtml. I would like to ask why we should want that kind of a restriction (blink …

Nov 17, 2024 · Mastering the double ampersand && in JavaScript can dramatically improve how you write pure and understandable code. Understanding its behavior, particularly in short …

Summary: in this tutorial, you will learn how to use the JavaScript logical operators including the logical NOT operator ( !), the logical AND operator ( &&) and the logical OR operator ( ||). The …

To find the length of a string, use the built-in length property: Because strings must be written within quotes, JavaScript will misunderstand this string: let text = "We are the so-called …

Assignment operators assign values to JavaScript variables. The Logical assignment operators are ES2020. The Simple Assignment Operator assigns a value to a variable. The Addition …

Aug 16, 2008 · The logical AND operator in JavaScript is indicated by the double ampersand ( && ): Logical AND can be used with any type of operands, not just Boolean values. When either …

Apr 3, 2025 · This chapter describes JavaScript's expressions and operators, including assignment, comparison, arithmetic, bitwise, logical, string, ternary and more. At a high level, …

Sep 20, 2016 · You probably don't want to use an ampersand in the id of an element, but if you really need to you can escape the & using one backslash in the css selector, and two …