Determining Date Inclusion within a Range
To ascertain whether a specified date falls within a predefined range, employing comparison operators like Date.before() and Date.after() can be cumbersome. An alternative, intuitive approach is to use a function that mimics the following pseudocode:
boolean isWithinRange(Date testDate) { return testDate >= startDate && testDate <p>Even though the dates retrieved from the database include timestamps, the proposed solution remains applicable.</p><h3 id="Optimal-Solution">Optimal Solution</h3><p>The optimal implementation of the isWithinRange function is:</p><pre class="brush:php;toolbar:false">boolean isWithinRange(Date testDate) { return !(testDate.before(startDate) || testDate.after(endDate)); }
This code effectively checks if the test date is "not" before the start date "or" after the end date.
Note the choice of boolean operators ensures accurate results even if the test date is exactly equal to either endpoint of the range. This approach offers a straightforward and concise solution to the challenge of determining date inclusion within a specified range.
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