Lab 5.1

m.wicke

Hi,
can someone help me with implementing the function prefixer? I'm a bit lost.

'use strict'
const sayHiTo = prefixer('Hello ')
const sayByeTo = prefixer('Goodbye ')
 
 
function prefixer (str) {
    console.log(str);
    }
 
 
console.log(sayHiTo('Dave')) // prints 'Hello Dave'
console.log(sayHiTo('Annie')) // prints 'Hello Annie'
console.log(sayByeTo('Dave')) // prints 'Goodbye Dave'
 

Thx a lot

davidmarkclements

• Return a function from prefixer that accepts an argument
• concat (e.g. use +) the out str argument and the returned functions argument together

pamvdam

The sayHiTo and sayByeTo functions expect a string argument called name. So the prefixer function should return a function that takes a name. As prefixer has it's own argument (greeting) in the outer scope you can use it in the scope of the returned function. Closures are common and confusing

d.m.c

@pamvdam 100%

kanhaiya5590

Prefixer function definetion for quick refence could be =

pass an argument "greeting", -> return an child fuction -> pass an argument "name" -> concate both argument "greeting+''+name" and return.