What are the basic syntax rules in JavaScript?
JavaScript syntax is the set of rules that define a correctly structured JavaScript program. Key rules include using semicolons to end statements, using curly braces for blocks of code, and following naming conventions for variables.
Can you give me examples of variable declarations?
Sure! In JavaScript, you can declare variables using var
, let
, or const
. For example: var name = 'John';
, let age = 30;
, and const pi = 3.14;
.
What about functions? How do I define one?
You can define a function in JavaScript using the function
keyword. For example: function greet() { console.log('Hello!'); }
.
Are there any important rules for naming variables?
Yes! Variable names must start with a letter, underscore, or dollar sign, and they are case-sensitive. Avoid using reserved keywords.
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