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JavaScript quick tips: filter arrays

rajikaimal profile image Rajika Imal ・1 min read

Filter only numbers in an array,

const myArray = [1, "const", 2, 3]
myArray.filter(Number); // 1, 2, 3
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Remove all falsy values in an array

const myArray = [1, "const", 2, 3, undefined, null]
myArray.filter(Boolean); // 1, "const", 2, 3
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