Store: Refrigerate in an airtight container for up to 24 hours.
Make ahead: Add all ingredients to a bowl except salt. Cover tightly and refrigerate for up to 48 hours. Add salt and stir mango salsa right before serving. As soon as you stir salt with other ingredients, they start "leaking".
To chop mango, I peel it, cut of the sides and then dice.Check out this tutorial how to cut a mango more traditional way.
Pick ripe mangoes that are a bit soft to the touch, not too hard and not too soft. I used ataulfo mangoes.
I freeze chopped jalapeños to avoid food waste and always have some on hand.
What makes jalapenos spicy are the seeds - add or omit as many as you like.