JavaScript Fundamentals Quiz

In JavaScript, the 'continue' statement restarts the innermost loop by skipping remaining code in the current iteration and beginning the next iteration. 'break' exits the loop entirely, while 'abort' and 'stop' are not valid loop control keywords.

JavaScript is described as object-based rather than object-oriented because it uses prototype-based inheritance instead of classical class-based inheritance. It supports objects and methods, but lacks traditional OOP features like classes and interfaces.

Netscape Navigator 2.0, released in 1995, was the first browser to support JavaScript (then called LiveScript). This version marked the initial introduction of JavaScript to the web.

In many programming languages like C, Java, and JavaScript, semicolons act as statement terminators. While they often end lines, their primary structural necessity occurs when placing multiple distinct statements on a single line to help the compiler or interpreter distinguish between them.

JavaScript versions 1.0 through 1.5 were released during the Netscape era. Versions 1.1, 1.2, 1.3, and 1.4 all existed as incremental improvements to the language specification.

JavaScript's syntax shares C-like characteristics with C (curly braces, operators) and Pascal (block structure, some statement keywords). C++ adds OOP concepts not intrinsic to core JavaScript, and PHP is server-side with different paradigms.

Object references in JavaScript are resolved at runtime, not compile time, because JavaScript is an interpreted language. The actual object being referenced may not be known until the code executes dynamically.

JavaScript programs are event-driven, meaning they respond to user actions like clicks, keystrokes, and page loads. The core execution model is based on event handlers and callbacks rather than classes, DLLs, or traditional component architectures.

JavaScript is platform-independent and runs in any browser or environment that implements the JavaScript engine. The same code executes consistently across Windows, Mac, Linux, and other operating systems without modification.

JavaScript variable names must begin with a letter, underscore, or dollar sign - they cannot start with a hyphen or comma. Since both underscore and letters are valid first characters, option E is correct.

JavaScript is primarily a client-side scripting language designed for web browsers, hence its emphasis on SCRIPTING. Unlike compiled languages focused on object creation or component building, JavaScript's main purpose is adding interactivity to web pages through scripts.

While the 'window' object is the global scope in browser-based JavaScript and its properties can be accessed without the prefix, explicitly including it is considered good practice for code clarity and avoiding naming collisions. It is not strictly required for compatibility or execution.