Jun 26, 2009 · This is called lexical scoping where " functions are executed using the scope chain that was in effect when they were defined " - according to JavaScript Definition Guide. Lexical scope is a …

Is hoisting actually "calling the function before it is defined"? Raising the scope of a declared name so that it will be defined for other code under that scope -- that's roughly what JavaScript does to allow …

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 console. …

Feb 12, 2017 · What is the meaning of "...args" (three dots) in a function definition? Asked 8 years, 11 months ago Modified 3 years, 1 month ago Viewed 120k times

Oct 12, 2023 · UMD (Universal Module Definition) patterns for JavaScript modules that work everywhere. ... This repository formalizes the design and implementation of the Universal Module …

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() function …

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 false, it will not use …

302 No, plain JavaScript is not a statically typed language. Sometimes you may need to manually check types of parameters in your function body. However, you can use linters and supersets of JavaScript …

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

while JavaScript supports console.assert(), it's just a logging method and won't interrupt current procedure if assertion failed. To bring things together and satisfy various needs, here is a tiny js …