Using TypeScript arrow function parentheses in the filter function

If I have an array of movie objects like this:

    const movies: Movie[] = [ movie1, movie2, movie3, movie4 ];

And if I want to remove a specific movie from the array, such as movie2, I can use the following code:

    movies = movies.filter( m => m !== movie );

I tried using a block statement within the arrow function to achieve the same result but it didn't work:

    movies = movies.filter( m => {
                   m !== movie;
                });

Can someone explain the difference between these two approaches?

Answer №1

One key distinction is that the condensed form automatically outputs the outcome. The extended version you provided lacks the inclusion of return commands, such as:

movies = movies.filter( m => {
 return m !== movie;
});

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