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Use '=' or LIKE to compare strings in SQL?
...here's the (almost religious) discussion, if you should use LIKE or '=' to compare strings in SQL statements.
9 Answers
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get all characters to right of last dash
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When to use nil, blank, empty? [duplicate]
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189
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How to implement a rule engine?
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This snippet compiles the Rules into fast executable code (using Expression trees) and does not need any complicated switch statements:
(Edit : full working example with generic method)
public Func<User, bool> CompileRule(Rule r)
{
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lsof survival guide [closed]
lsof is an increadibly powerful command-line utility for unix systems. It lists open files, displaying information about them. And since most everything is a file on unix systems, lsof can give sysadmins a ton of useful diagnostic data.
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Git command to display HEAD commit id?
What command can I use to print out the commit id of HEAD?
9 Answers
9
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Styling input buttons for iPad and iPhone
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The link above is now dead, unfortunately (thinkvitamin.com/design/…).
– Per Quested Aronsson
Sep 5 '12 at 11:00
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Error-Handling in Swift-Language
...g this way you do not get the error object.
Which means that you can also combine try? with useful statements like:
if let dragon = try? summonDefaultDragon()
or
guard let dragon = try? summonDefaultDragon() else { ... }
Finally, you can decide that you know that error will not actually occur...