Freecodecamp:search and Replace

Performs a find and replace on a sentence with a given argument and returns a new sentence.

The first parameter is the sentence on which to perform the find and replace.

The second argument is the word that will be replaced (the word before it is replaced).

The third parameter is used to replace the second argument (the replaced word).

Note: Keep the case of the original word when replacing. For example, if you want to replace the word "book" with the word "dog", you should replace it with "dog".

function Myreplace (str, before, after) {  var newstr = "";   if (Before[0] = = = Before[0].touppercase ()    ) {= After[0].touppercase () + after.slice (1);  }   = str.replace (before,after);     return Newstr;} Myreplace ("A quick brown fox jumped over the lazy dog", "jumped", "leaped");

Freecodecamp:search and Replace