Can you explain map, filter, and reduce with examples?
An example of an AI chatbot conversation about map, filter, and reduce in programming.
Can you explain map, filter, and reduce with examples?
Sure! Map, filter, and reduce are higher-order functions in programming, often used with arrays. Would you like examples in JavaScript?
Yes, please provide examples in JavaScript.
Alright! For map, you can use it to transform an array. For example: const nums = [1, 2, 3]; const squares = nums.map(num => num * num); This will give you [1, 4, 9].
What about filter?
For filter, it’s used to create a new array with elements that pass a test. For example: const evens = nums.filter(num => num % 2 === 0); This will give you [2].
And reduce?
Reduce is used to accumulate values. For example: const sum = nums.reduce((acc, num) => acc + num, 0); This will give you 6.
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