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What columns generally make good indexes?
...mpting to learn about indexes, what columns are good index candidates? Specifically for an MS SQL database?
12 Answers
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Determine Whether Integer Is Between Two Other Integers?
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if 10000 <= number <= 30000:
pass
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How can I disable the UITableView selection?
...d hence, obviously, there will never be a selected-animation.)
(Note that if, on the cells, you have UIButton or any other controls, of course those controls will still work. Any controls you happen to have on the table cell, are totally unrelated to UITableView's ability to allow you to "select a ...
The role of #ifdef and #ifndef
In this what is the role of #ifdef and #ifndef , and what's the output?
4 Answers
4...
How do I compare two strings in Perl?
...ne, and cmp as appropriate for string comparisons:
Binary eq returns true if the left argument is stringwise equal to the right argument.
Binary ne returns true if the left argument is stringwise not equal to the right argument.
Binary cmp returns -1, 0, or 1 depending on whether the left argument ...
Format a Go string without printing?
...d a verb, basically it lets Sprintf know what type the variable is so that if it receives 65 and the verb is %d it will print the number 65 but if the verb is %c it will print the character 'A'. See: golang.org/pkg/fmt/#hdr-Printing
– redsalt
Apr 8 '17 at 11:48...
PHP: How to remove specific element from an array?
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Use array_search to get the key and remove it with unset if found:
if (($key = array_search('strawberry', $array)) !== false) {
unset($array[$key]);
}
array_search returns false (null until PHP 4.2.0) if no item has been found.
And if there can be multiple items with the sa...
LINQ Select Distinct with Anonymous Types
...es on the type to compute an
object's hash code and test for
equality. If two objects of the same
anonymous type have all the same
values for their properties – the
objects are equal.
So it's totally safe to use the Distinct() method on a query that returns anonymous types.
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Regular Expression to match string starting with “stop”
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If you wish to match only lines beginning with stop use
^stop
If you wish to match lines beginning with the word stop followed by a space
^stop\s
Or, if you wish to match lines beginning with the word stop but followed ...
Angular ng-if=“” with multiple arguments
...iewing the documentation some questions persist. How do i best write a ng-if with multiple arguments corresponding to
4 ...