Build a Smart Word Replacement Function - Build a Smart Word Replacement Function

JavaScript
1

Tell us what’s happening:

I think I have actually done what the lab required and returned it properly but it throws an undefined error and I can’t tell what exactly is undefined

Your code so far

function myReplace(str,oldWord,newWord){
  if(/^[A-Z]/.test(oldWord)){
    console.log("yes");
    newWord = newWord[0].toUpperCase()+newWord.slice[1];
  }else{
    newWord = newWord[0].toLowerCase() + newWord.slice[1];
  }
  return str.replace(oldWord, newWord);
}
console.log(myReplace("Let us go to the store", "store", "mall"));
console.log(myReplace("He is Sleeping on the couch", "Sleeping", "sitting"));
console.log(myReplace("I think we should look up there", "up", "Down"));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Challenge Information:

Build a Smart Word Replacement Function - Build a Smart Word Replacement Function

2

what is the syntax for the slice method?

1 Like
4

slice isn’t an array, its a function.

1 Like
5

Put this at the beginning of your function

console.log(newWord.slice[1])

Use console log this way to investigate your function.