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 …

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.

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() …

How do you tell if a function in JavaScript is defined? I want to do something like this

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 …

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

what is the difference b/w properties and variables in javascript. All I can think of is as: objects variables are called properties and ouside everything is variable we don't call them properties.

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

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 …

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 …