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What is the difference between const_iterator and non-const iterator in the C++ STL?
What is the difference between a const_iterator and an iterator and where would you use one over the other?
7 Answers
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What is the session's “secret” option?
...ior express-session since 1.11.0 supports secret rotation. From the docs: "If an array of secrets is provided, only the first element will be used to sign the session ID cookie, while all the elements will be considered when verifying the signature in requests." (See expressjs/session#127 for detail...
Why does Iterable not provide stream() and parallelStream() methods?
...a dumb iterator in cases where Q (work per element) is
nontrivial.)
If Iterable had a stream() method, it would just wrap an Iterator with
a Spliterator, with no size information. But, most things that are
Iterable do have size information. Which means we're serving up
deficient st...
Prepend a level to a pandas MultiIndex
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It took me a while to realize that if you have more than one key for FirstLevel as in ['Foo', 'Bar'] the first argument will also need to have the corresponding length, i.e., [df] * len(['Foo', 'Bar'])!
– mrclng
Dec 13 '1...
Is it possible to send an array with the Postman Chrome extension?
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You need to suffix your variable name with [] like this:
If that doesn't work, try not putting indexes in brackets:
my_array[] value1
my_array[] value2
Note:
If you are using the postman packaged app, you can send an array by selecting raw / json (instead of form-data). A...
Different bash prompt for different vi editing mode?
...
Just adding on from eMPee584 - if you are running bash 4.3 or higher, add the following to your ~/.inputrc file set show-mode-in-prompt This adds a + to the very left of your prompt if you are in edit mode, and a : if you are in command mode.
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Allow anything through CORS Policy
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github.com/cleor41/Cors-Rails4-API Check this out if you don't know where to put it still.
– CleoR
Oct 7 '14 at 14:46
8
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What is the easiest way in C# to trim a newline off of a string?
...ment.NewLine.Length);
}
return text;
}
It's somewhat inefficient if there are multiple newlines, but it'll work.
Alternatively, if you don't mind it trimming (say) "\r\r\r\r" or "\n\n\n\n" rather than just "\r\n\r\n\r\n":
// No need to create a new array each time
private static readonly...
PHP - find entry by object property from an array of objects
...ormer, something like this
$item = null;
foreach($array as $struct) {
if ($v == $struct->ID) {
$item = $struct;
break;
}
}
See this question and subsequent answers for more information on the latter - Reference PHP array by multiple indexes
...
What is the command to exit a Console application in C#?
...e! see below)
Edited 9/2013 to improve readability
Returning with a specific exit code: As Servy points out in the comments, you can declare Main with an int return type and return an error code that way. So there really is no need to use Environment.Exit unless you need to terminate with an exit...