javascript - Loop inside React JSX

I'm trying to do something like the following in React JSX (where ObjectRow is a separate component):

    for (var i=0; i < numrows; i++) {
        
    } 

I realize and understand why this isn't valid JSX, since JSX maps to function calls. However, coming from template land and being new to JSX, I am unsure how I would achieve the above (adding a component multiple times).