Slice array method in javascript with example
JavaScript slice() Method – Step-by-Step Explanation
The slice() method in JavaScript is used to extract a portion of an array and return it as a new array, without modifying the original array. This method is useful when you want to get a subset of an array while keeping the original data unchanged.
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Step-by-Step Explanation of slice() Method
Step 1: Understanding the Syntax
The slice() method takes two optional parameters:
array.slice(start, end);
start (optional): The index where extraction begins (inclusive). If omitted, it starts from index 0.
end (optional): The index where extraction stops (exclusive). If omitted, it slices until the end of the array
✅ Does not modify the original array (non-mutating).
✅ Returns a new array with selected elements.
✅ Can use negative indexes to count from the end.
✅ End index is exclusive, meaning the element at that index is not included.
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