Zero-Based Numbering at Stephen Hyatt blog

Zero-Based Numbering. Arrays in that language start at index 0. He argues that numbering should start at 0 because it means that the valid indexes into an array can be described as 0 <= i < n. What about the last, or maybe even the seventeenth? There’s a lot of data out there, and indexing gives us a set of rules to extract by position. Except… not every program indexes the same way. Have you ever needed to pull the first record of a dataset?

Chapter 9 Additional Controls and Objects ppt download
from slideplayer.com

Have you ever needed to pull the first record of a dataset? There’s a lot of data out there, and indexing gives us a set of rules to extract by position. He argues that numbering should start at 0 because it means that the valid indexes into an array can be described as 0 <= i < n. What about the last, or maybe even the seventeenth? Arrays in that language start at index 0. Except… not every program indexes the same way.

Chapter 9 Additional Controls and Objects ppt download

Zero-Based Numbering Except… not every program indexes the same way. What about the last, or maybe even the seventeenth? Arrays in that language start at index 0. There’s a lot of data out there, and indexing gives us a set of rules to extract by position. Have you ever needed to pull the first record of a dataset? He argues that numbering should start at 0 because it means that the valid indexes into an array can be described as 0 <= i < n. Except… not every program indexes the same way.

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