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Confused by python file mode “w+”
...
138
Let's say you're opening the file with a with statement like you should be. Then you'd do somet...
Check whether a path is valid in Python without creating a file at the path's target
...the is_path_exists_or_creatable() function defined below.
Strictly Python 3. That's just how we roll.
A Tale of Two Questions
The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is clearly two separate questions. Both are intere...
What is the correct XPath for choosing attributes that contain “foo”?
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310
//a[contains(@prop,'Foo')]
Works if I use this XML to get results back.
<bla>
<a ...
When to use “new” and when not to, in C++? [duplicate]
When should I use the "new" operator in C++? I'm coming from C#/Java background and instantiating objects is confusing for me.
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Aborting a stash pop in Git
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answered Jan 22 '13 at 1:32
Ben JacksonBen Jackson
73.8k77 gold badges8181 silver badges135135 bronze badges
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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
...n array by reference.
And the given example :
<?php
$arr1 = array(2, 3);
$arr2 = $arr1;
$arr2[] = 4; // $arr2 is changed,
// $arr1 is still array(2, 3)
$arr3 = &$arr1;
$arr3[] = 4; // now $arr1 and $arr3 are the same
?>
For the first part, the best way to be sure is to ...
Remove an item from array using UnderscoreJS
... arr = [{
id: 1,
name: 'a'
}, {
id: 2,
name: 'b'
}, {
id: 3,
name: 'c'
}];
//substract third
arr = _.without(arr, _.findWhere(arr, {
id: 3
}));
console.log(arr);
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></scrip...
How to use SCNetworkReachability in Swift
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236
(This answer was extended repeatedly due to changes in the Swift language, which made it a bit ...
System.Data.SQLite Close() not releasing database file
...Handle overrides the CriticalHandle.ReleaseHandle() function to call sqlite3_close_interop() (through another function) this does not close the database.
From my point of view this is a very bad way to do things since the programmer is not actually certain when the database gets closed, but that is...