What\'s the Significance of the Dollar Sign in JavaScript Variable Names?

Why Use the Dollar Sign in JavaScript Variable Names?

The JavaScript code provided includes a variable named "$item," which raises the question: what is the purpose of the dollar sign in the variable name?

In JavaScript, a dollar sign leading a variable name does not hold special meaning for the interpreter. It serves as a convention to easily identify variables containing jQuery objects, as seen in the example code.

The dollar sign is often prefixed to variables in jQuery (which the example code resembles) to differentiate them from other variable types, such as integers. This aids in code readability and prevents mix-ups.

Additionally, the jQuery library employs a widely used function called "$()," explaining the preference for a single-character variable name. Using "$" allows for a concise name while maintaining easy recognizability and separation of jQuery-related variables.

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