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Checking for a null int value from a Java ResultSet
...) {
iVal = rs.getInt("ID_PARENT");
if (rs.wasNull()) {
// handle NULL field value
}
}
(Edited as @martin comments below; the OP code as written would not compile because iVal is not initialised)
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How do I do a Date comparison in Javascript? [duplicate]
...getTime function returns an undefined value. I don't think I quite understand the getTime(). Is that supposed to be a predefined function?
– Lulu Ket
Dec 3 '08 at 20:22
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Conditional import of modules in Python
...mport simplejson as json as it is likely a newer (faster) version of the standard json module.
– Seppo Erviälä
Oct 20 '12 at 17:07
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Accessing the web page's HTTP Headers in JavaScript
...o read the current headers. You could make another request to the same URL and read its headers, but there is no guarantee that the headers are exactly equal to the current.
Use the following JavaScript code to get all the HTTP headers by performing a get request:
var req = new XMLHttpRequest();...
Get hostname of current request in node.js Express
...rs.host is provided by the user. I can craft a request in 1 line of python and send you a request without that field making your code crash
– arboreal84
Jul 28 '16 at 18:31
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Testing modules in rspec
...ting modules in rspec? I have some modules that get included in few models and for now I simply have duplicate tests for each model (with few differences). Is there a way to DRY it up?
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pinpointing “conditional jump or move depends on uninitialized value(s)” valgrind message
...ve been getting some mysterious uninitialized values message from valgrind and it's been quite the mystery as of where the bad value originated from.
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How do I use spaces in the Command Prompt?
How can I use spaces in the Windows Command Line?
11 Answers
11
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Pandas aggregate count distinct
Let's say I have a log of user activity and I want to generate a report of total duration and the number of unique users per day.
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AttributeError(“'str' object has no attribute 'read'”)
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I don't understand this...how does doing read() solve the problem? The response still doesn't have a read function. Are we supposed to put the string in some object with a read function?
– zakdances
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