What does the mean in JavaScript?

JavaScript is a scripting language, so it doesn’t have strict rules about the order that things must be written. A variable is just a collection of values. If you want, you can declare a variable in one line of code and use it in another. But you don’t have to. This gives the language a lot of flexibility, but it can also make it confusing. The order in which things are written is sometimes significant, and the JavaScript interpreter usually throws an error when you

What does the round parentheses mean in JavaScript?

In JavaScript, when used without any other context, the parentheses are used to create an anonymous function. If you don’t include the curly braces, the function will return whatever result is returned by the last line of code within the function.

What does the asterisk mean in JavaScript?

The asterisk is used to declare an optional parameter in a function. For example, the add function can receive two arguments (numbers), or it can receive four arguments with three of them being optional.

What does the ampersand mean in JavaScript?

The ampersand is the symbol used to represent the word “and” in JavaScript. It is a short punctuation mark, used to connect two or more words in a sentence. You can use an ampersand in JavaScript when you want to communicate to the interpreter that you are following the next item in a list and that there should be no comma separating these two items.

What does the => mean in JavaScript?

The arrow function is a JavaScript version of a function statement. A function statement is a block of code that is executed when it is read. In contrast, an arrow function is an expression. An expression does not return any value, but rather produces a value. Arrow functions are especially popular in JavaScript as they are much more concise than regular function expressions.