Jun 26, 2009 · 42 A lexical scope in JavaScript means that a variable defined outside a function can be accessible inside another function defined after the variable declaration. But the …

May 5, 2009 · In Javascript, or more specifically jQuery, for example, you can specify a callback argument to be called when an animation has finished. In PHP, the preg_replace_callback() …

Douglas Crockford recommends to use function expression in his «JavaScript: The Good Parts» book because it makes it clear that foo is a variable containing a function value.

Sep 10, 2009 · JavaScript is commonly believed just to run on browsers- this is incorrect. When I was a classic ASP developer we had the choice of VBScript or JavaScript server side (we also …

Feb 12, 2017 · What is the meaning of "...args" (three dots) in a function definition? Asked 8 years, 9 months ago Modified 3 years ago Viewed 120k times

Inline JavaScript in HTML allows scripts to be embedded directly within the HTML code, enabling dynamic content and interactive features on web pages.

The nullish coalescing operator (??) in JavaScript only considers null or undefined as "nullish" values. If the left-hand side is any other value, even falsy values like "" (empty string), 0, or …

20 Another way to navigate to the location of a function definition would be to break in debugger somewhere you can access the function and enter the functions fully qualified name in the …

Dec 30, 2015 · Is there a way in Javascript to define a function and immediately call it, in a way that allows it to be reused? I know you can do one-off anonymous functions: (function(i) { var …

May 3, 2021 · Note that the "interface" definition you're linking to is not exactly a JavaScript thing, but more of a thing for web APIs. In other implementations of JavaScript not in browsers (for …