Consecutive Differences
EasyData EngineeringArray
Description
Given an array, return the differences between each element and the one before it. The output has one fewer element than the input; a single-element input returns an empty array.
Examples
Input:
[1,3,6,10]Output:
[2,3,4]Explanation:
Subtracting each element from its predecessor produces the step-by-step changes through the series.
Input:
[5,5,5]Output:
[0,0]Explanation:
Subtracting each element from its predecessor produces the step-by-step changes through the series.
Input:
[10,7,1]Output:
[-3,-6]Explanation:
Subtracting each element from its predecessor produces the step-by-step changes through the series.
Constraints
- •
1 ≤ length ≤ 10⁴
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