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MySQL check if a table exists without throwing an exception
What is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query?
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heroku - how to see all the logs
...p on heroku. Whenever I want to see the logs I go to the command line and do
19 Answers
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What is the C# Using block and why should I use it? [duplicate]
...st implement that interface, is there any sort of rule of thumb on this or do I have to check each type individually?
– JsonStatham
May 20 '15 at 13:47
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Best way to change the background color for an NSView
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NSRectFill uses NSCompositeCopy to do the fill, so it'll clobber anything behind it—it won't composite on top of any ancestor views. For fills with a partially- (or fully-)transparent color, use NSRectFillUsingOperation developer.apple.com/mac/library/docume...
In Java, is there a way to write a string literal without having to escape quotes?
...= "using `backticks` instead of quotes".replace('`', '"');
I mainly only do something like that for a static field. Since it's static the string-replace code gets called once, upon initialization of the class. So the runtime performance penalty is practically nonexistent, and it makes the code con...
Long press on UITableView
...n a UITableViewCell to print a "quick access menu".
Did someone already do this?
10 Answers
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OSX - How to auto Close Terminal window after the “exit” command executed.
When I'm done with Terminal, I want to exit it. Right now, I have three options:
14 Answers
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Overflow Scroll css is not working in the div
...ow-y:scroll;
position:relative;
height: 300px;
}
JSFIDDLE
From documentation:
overflow-y
The overflow-y CSS property specifies whether to clip content, render a scroll bar, or display overflow content of a block-level element, when it overflows at the top and bottom edges.
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How can I set focus on an element in an HTML form using JavaScript?
I have a web form with a text box in it. How do I go about setting focus to the text box by default?
9 Answers
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Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]
....labelTitle{
label.text = "This is a title"
}
You will still have to do some debugging to see why you are getting a nil value there though.
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