// 22. Splice an Array Without Mutating the Original Array

//1. Using slice() and concat() Methods - Most Used

{

const a1 = [1, 2, 3, 4, 5];

const a2 = a1.slice(0, 1);

console.log(a2);

}

//2. Using filter() Method for Conditional Removal

{

const a1 = [1, 2, 3, 4, 5];

const a2 = a1.filter((_, index) => index !== 1 && index !== 2);

console.log(a2);

console.log(a1);

}

//3. Using the Spread Operator and slice() Method

{

const a1 = [1, 2, 3, 4, 5];

const a2 = [...a1.slice(0, 1), ...a1.slice(3)];

console.log(a2);

console.log(a1);

}

//4. Using map() Method with Conditionals

{

const a1 = [1, 2, 3, 4, 5];

const a2 = a1

.map((el, index) => (index === 1 || index === 2 ? null : el))

.filter((el) => el !== null);

console.log(a2);

console.log(a1);

}

//