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At runtime, find all classes in a Java application that extend a base class
...ns. I mistakenly figured this would be as easy as it is in the .Net world and this answer has saved me a lot of time.
– akmad
Oct 1 '12 at 19:55
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Input with display:block is not a block, why not?
...hy does display:block;width:auto; on my text input not behave like a div and fill the container width?
7 Answers
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Load and execute external js file in node.js with access to local variables?
Is it easy/possible to do a simple include('./path/to/file') type of command in node.js?
6 Answers
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Convert a list to a data frame
I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data?
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Connect Device to Mac localhost Server? [closed]
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I had the same problem. I turned off my WI-FI on my Mac and then turned it on again, which solved the problem. Click Settings > Turn WI-FI Off.
I tested it by going to Safari on my iPhone and entering my host name or IP address. For example:
http://<name>.local or http:/...
Prepend text to beginning of string
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Perhaps this should be the new standard: each post must also include relevant XKCD.
– Brett84c
Sep 12 '18 at 20:33
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C# Float expression: strange behavior when casting the result float to int
...ing (it's actually the value 61.99999809265137 when expressed as a double) and that your question is only about why two seemingly identical computations result in the wrong value.
The answer is that in the case of (int)(6.2f * 10), you are taking the double value 61.99999809265137 and truncating it...
SQL Data Reader - handling Null column values
...der.GetString(indexFirstName);
}
That's your only reliable way to detect and handle this situation.
I wrapped those things into extension methods and tend to return a default value if the column is indeed null:
public static string SafeGetString(this SqlDataReader reader, int colIndex)
{
if(!...
Determine whether an array contains a value [duplicate]
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fixed the comparison and added the missing return -1; please note that according to the ES5 spec, this method will behave differently from the native one in case ofsigned zeroes and NaNs (see 15.4.4.14 and 9.12 vs. 11.9.6)
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Why shouldn't I use mysql_* functions in PHP?
...y important as they provide a clearer, less error-prone method of escaping and quoting external data than manually escaping it with a separate function call.
See the comparison of SQL extensions.
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