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The Ruby Way: Solutions and Techniques in Ruby Programming, Second Edition
book

The Ruby Way: Solutions and Techniques in Ruby Programming, Second Edition

by Hal Fulton
October 2006
Intermediate to advanced
888 pages
16h 55m
English
Addison-Wesley Professional
Content preview from The Ruby Way: Solutions and Techniques in Ruby Programming, Second Edition

7.11. Finding the Week of the Year

The definition of “week number” is not absolute and fixed. Various businesses, coalitions, government agencies, and standards bodies have differing concepts of what it means. This stems, of course, from the fact that the year can start on any day of the week; we may or may not want to count partial weeks, and we may start on Sunday or Monday.

We offer only three alternatives in this section. The first two are made available by the Time method strftime. The %U specifier numbers the weeks starting from Sunday, and the %W specifier starts with Monday.

The third possibility comes from the Date class. It has an accessor called cweek, which returns the week number based on the ISO 8601 definition (which says that ...

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Publisher Resources

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