What is the difference between filter and map in programming?

Can you explain the difference between filter and map in programming?

Sure! The 'filter' function is used to create a new array with elements that pass a certain condition, while 'map' transforms each element in an array and returns a new array with the transformed elements.

Can you give me an example of how each function works?

Of course! For 'filter', if you have an array of numbers and want to keep only the even ones, you would use filter. For 'map', if you want to double each number in the array, you would use map.

What would the code look like for those examples?

Here's an example in JavaScript:

// Using filter const numbers = [1, 2, 3, 4, 5]; const evens = numbers.filter(num => num % 2 === 0);

// Using map const doubled = numbers.map(num => num * 2);