Sift through Text with Regular Expressions with a Function?

JavaScript
1

How would i make this code from this lesson https://www.freecodecamp.org/challenges/sift-through-text-with-regular-expressions work when using it in function? I tried it but it returns Invalid Javascript.

function myFunction(word) {

var string = "Michael is 22 and he is a web designer and he is also developer";

var find = /word/gi;
var count = string.match(find).length;

return count;

}
myFunction("is");
2

word is a variable, but in your find you are just creating a pattern for the actual letters 'word'.

3

Can you give me a example of how i would make code like this work in function? I knew i failed at something in this code lol.