Quick JavaScript Crash Course - Modern and Advanced JavaScript - Arrow Functions

The lecture introduces arrow functions, a feature introduced in ES6, highlighting their compactness and improved readability. It explains the syntax, which omits the function name and uses an arrow to separate parameters from the function body. The lecture also demonstrates how to convert traditional functions into arrow functions by removing the function keyword and adding an arrow between parameters and implementation.

What is one of the main benefits of using arrow functions introduced in ES6?

• They allow for multiple return values.

• They provide better error handling.

• They make the code more compact and readable.

• They enable asynchronous programming.

Which of the following is true about the syntax of arrow functions?

• Arrow functions do not require parentheses for parameters.

• Arrow functions use the 'function' keyword.

• Arrow functions do not have a name.

• Arrow functions must have a name.

In arrow functions, where do you write the implementation of the function?

• Inside angle brackets.

• Inside parentheses.

• Inside curly braces.

• Inside square brackets.

What is the first step in converting a traditional function to an arrow function?

• Change the function name to 'arrow'.

• Add parentheses around the function body.

• Remove the function keyword and the name.

• Add an arrow between the parameters and implementation.

What symbol is used to separate parameters from the implementation in an arrow function?

• A colon (:)

• A semicolon (;)

• A comma (,)

• An arrow (=>)