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astfarias/note-js-function-higher-order-function-filter.js

Last active August 15, 2017 06:02
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JS - Functional Programming - Higher-order Functions - filter()
Raw
note-js-function-higher-order-function-filter.js
// Example of filter as a higher-order function because uses a callback function
var animals = [
{ name: 'Fluffykins', species: 'rabbit' },
{ name: 'Caro', species: 'dog' },
{ name: 'Hamilton', species: 'dog' },
{ name: 'Harold', species: 'fish' },
{ name: 'Ursula', species: 'cat' },
];
var dogs = animals.filter(function(animal){
return animal.species === 'dog'
});
/**
[ { name: 'Caro', species: 'dog' },
{ name: 'Hamilton', species: 'dog' } ]
*/
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