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I have a global variable:
<pre><code id="code-10-28478598-1">aa_pageNameTypeURL</code></pre>
 Should I use &quot;window.'&quot; every time I reference this variable? What are the pros/cons?
<pre><code id="code-10-28478598-2">window.aa_pageNameTypeURL;</code></pre>
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I have a global variable:(CODE) Should I use "window.'" every time I reference this variable? What are the pros/cons?(CODE)

Why do I not have to use &quot;window.&quot; every time?

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

A scripting language is a programming language that supports scripts, programs written for a special run-time environment that automate the execution of tasks that could alternatively be executed one-by-one by a human operator. Scripting languages are often interpreted (rather than compiled). Primitives are usually the elementary tasks or API calls, and the language allows them to be combined into more complex programs. Environments that can be automated through scripting include software applications, web pages within a web browser, the shells of operating systems (OS), embedded systems, as well as numerous games. A scripting language can be viewed as a domain-specific language for a particular environment; in the case of scripting an application, this is also known as an extension language.

Why do I not have to use &quot;window.&quot; every time?

Why do I not have to use "window." every time?