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stevencch99/first-class.js

Created May 11, 2019 12:48
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first-class.js
// Example in JavaScript
let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
function isEven(x){
return x % 2 === 0;
}
let evenNumbers = numbers.filter(isEven);
// 2 4 6
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