Javascript simple encryption. Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. Are there more such operators? That is, JavaScript "short-circuits" the evaluation of Boolean operators and will return the value associated with either the first non-false variable value or whatever the last variable contains. In JavaScript, it has questionable performance, and we rarely work with binary data. Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. . It returns its right-hand-side operand when its left-hand-side operand is null or undefined, and otherwise returns its left-hand-side operand. Mar 7, 2016 · What does $ {} (dollar sign and curly braces) mean in a string in JavaScript? Asked 9 years, 6 months ago Modified 1 year, 9 months ago Viewed 421k times Jan 25, 2009 · JavaScript now supports the nullish coalescing operator (??). Previously most JavaScript code used ||. Other programming languages (like C and Java) use it for performance reasons or to work with binary data. value. bwc apjg bsjku osuxgv qa fu9en8c 7hf syq6 ci3 yy