Discussion: The Arrayist
Execute the code to understand the output and gain insights into the concise method to generate an array of numbers in JavaScript.
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Verifying the output
Now, it’s time to execute the code and observe the output.
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const f = (n) => [...Array(n)].map((_, i) => i + 1);console.log(f(20));
Understanding the output
This puzzle reveals a super concise method to generate an array of numbers from 1 to n using the powerful combination of arrow functions, the spread operator, and the map() method. ...