is filter method and if else are same?

I was learning filter method, but is filter method similar to if else or are there any differences?
I am expecting that there might be some difference between them.
And is it necessary to create a new variable whenever we are using filter method().
like let us say

const numbers = [1,2,3,4,5,6,7,8] const odd = nums.filter(n => { return num % 2 === 1; }

I can also implement the above code using if/else but why filter method?

>Solution :

The filter method and if-else statements serve different purposes and have distinct use cases in JavaScript.

  • filter is used for filtering elements in an array based on a condition, whereas if-else is used for controlling the flow of your program based on a condition.

  • filter returns a new array containing the elements that meet the condition, while if-else statements execute different code blocks based on the condition.

  • They have different use cases: filter is ideal for selecting elements from an array, while if-else is used for making decisions and controlling program flow.

const numbers = [1, 2, 3, 4, 5];
const evenNumbers = numbers.filter((number) => number % 2 === 0);
// evenNumbers will contain [2, 4]

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