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JavaScript JavaScript Functions Arrow Functions Create an Arrow Function

Posted by Austin Yeater
Austin Yeater
5,510 Points

how do you Convert the greet function declaration to an arrow function. HINT: Arrow functions are not hoisted – or lif

script.js 
const greet('cool coders') => ;

function greet(val = 'Austin') {
  return `Hi, ${val}!`;
}

1 Answer

Jason Larson
Jason Larson
8,361 Points
Jason Larson
Jason Larson
8,361 Points

You were on the right track by making the arrow function at the top, but you were working on the wrong part. That first line is calling the function, and since you are converting the function to an arrow function, you leave that line as it is, but move it down below the function declaration. As for the arrow function itself, you are going to remove the 'function' keyword and replace it with let or const, then put an equal sign after the name, then stick the arrow between the parameters and the curly braces:

const greet = (val) => {
  return `Hi, ${val}!`;
}
greet('cool coders');

Note that because this is just a single line of code in the function, and it's the return statement, you can shorten this by eliminating the curly braces and the return keyword. (If you have more than one line of code, you'll need to use the curly braces and remember to return anything you need to get from your function.) You can also get rid of the parentheses around the parameter, though you'll need to have it if you want to use a default parameter like you are trying to do in your code:

const greet = val => `Hi, ${val}!`;
greet('cool coders');

const greet = (val = 'Austin') => `Hi, ${val}!`;
greet();