What are the basic syntax rules in JavaScript?

What are the basic syntax rules in JavaScript?

JavaScript syntax refers to the set of rules that define a correctly structured JavaScript program. It includes how to declare variables, use operators, and structure control flow.

Can you explain how to declare a variable?

Sure! In JavaScript, you can declare a variable using the keywords var, let, or const. For example, let name = 'John'; declares a variable named name.

What’s the difference between let and const?

let allows you to reassign the variable later, while const creates a constant variable that cannot be reassigned.

Are there any specific rules for naming variables?

Yes, variable names must start with a letter, underscore (_), or dollar sign ($). They can include letters, numbers, underscores, and dollar signs, but cannot start with a number.