Exercise: Implement filter

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Prompt

Implement filter , a function that iterates over elements of collection, returning an array of all elements the callback returns truthy for. The callback is invoked with three arguments: (value, index|key, collection).

Definition: filter(collection, callback)

Example Usage:

var users = [

{ 'user': 'barney', 'age': 36, 'active': true },

{ 'user': 'fred', 'age': 40, 'active': false }

];

filter(users, (o) => { return !o.active; });

// => [{active: false, age: 40, user: "fred"}]

Code here

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Solution

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filter Solution

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Exercise: Implement filter

Prompt

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Solution

filter Solution

Next 👉 Closure⁠

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`Closure`⁠