Differences between forEach(), some(), and every() in JavaScript when working with arrays

forEach():
The forEach() method iterates over each element in an array and executes a provided function for each element. It does not return a new array; instead, it performs side effects (e.g., modifying elements, logging, etc.). Use forEach() when you want to perform an action on each element without creating a new array.
Example: JavaScript

const numbers = [1, 2, 3, 4];
numbers.forEach((num) => console.log(num));

some():
The some() method checks whether at least one element in the array satisfies a given condition (predicate). It returns true if any element passes the test; otherwise, it returns false. Use some() when you want to check if any element meets a specific condition.
Example: JavaScript

const strarr = ["method", "checks", "whether"];
const isFound = strarr.some((item) => item==="whether");
console.log(isFound); // true
const isNotFound = strarr.some((item) => item==="ram");
console.log(isNotFound); // false

every():
The every() method checks whether all elements in the array satisfy a given condition (predicate). It returns true if all elements pass the test; otherwise, it returns false. Use every() when you want to ensure that all elements meet a specific condition.
Example: JavaScript

const numbers = [1, 2, 3, 4];
const allPositive = numbers.every((num) => num > 0);
console.log(allPositive); // true

In summary:

Use forEach() for side effects (e.g., logging, modifying elements).
Use some() to check if any element meets a condition.
Use every() to ensure all elements satisfy a condition.