Using the ${} in coding

Code Help HTML/CSS/JS
1

Question:

Why does the sentence of my code include the ${} symbols with it?
Repl link:

code snippet
const introducer = (name, shirt) => {
  const person = { 
    name: name,
    shirt: shirt
}
  
    const intro ='Hi, my name is ${person.name} and the color of my shirt is ${person.shirt}' 

  return intro
} 

console.log(introducer('James', 'black')) 
console.log(introducer('Leonardo', 'shirt'))
2

This is a javascript string substitution syhstem:

Hi, my name is James and the color of my shirt is black
Hi, my name is Leonardo and the color of my shirt is shirt
1 Like
3

Change the single quotes to backtics ` if you want to use string formatting.

3 Likes
4

Change this:

    const intro ='Hi, my name is ${person.name} and the color of my shirt is ${person.shirt}'

to this:

    const intro =`Hi, my name is ${person.name} and the color of my shirt is ${person.shirt}`