Med Java

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====== Java Script Slice vs Splice methods ======

====== Slice ======

**slice() method** returns a shallow copy of a portion of an array into a new array object.
<note>
The original array is not modified.
</note>

Syntax:
<code>
array.slice(begin, end)
</code>

**begin** (optional): The starting index (**inclusive**).
**end** (optional): The ending index (**exclusive**).

<code javascript>
const numbers = [1, 2, 3, 4, 5];
const sliced = numbers.slice(1, 3);
console.log(sliced); // [2, 3]
console.log(numbers); // [1, 2, 3, 4, 5] (unchanged)
</code>

====== Splice ======

**splice() method** changes the content of an array by removing and/or adding elements. 
<note>
The original array is modified.
</note>

Syntax:
<code>
array.splice(start, deleteCount, item1, item2, ...)
</code>

**start**: The index at which to start changing the array.
**deleteCount** (optional): The number of elements to remove.
**item1, item2, ...** (optional): The elements to add to the array.

<code javascript>
const numbers = [1, 2, 3, 4, 5];
const spliced = numbers.splice(1, 2, 'a', 'b');
console.log(spliced); // [2, 3]
console.log(numbers); // [1, 'a', 'b', 4, 5] (modified)
</code>

====== Summary ======

<note>
**slice** is used to extract parts of an array without modifying it, while **splice** can add, remove, or replace elements within the array, changing its content in the process.
</note>