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Why are arrays covariant but generics are invariant?
...is going to be in them, but won't put into the array anything which wasn't read out of that same array. A prime example of this is sorting code. Conceptually it might have been possible for array types to include methods to swap or permute elements (such methods could be equally applicable to any ...
Coding Style Guide for node.js apps? [closed]
...t's got a hell of a lot of information in a concise / small book - a heavy read, but one of the best books I've read.
– Alex KeySmith
Mar 31 '11 at 9:12
add a comment
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Are there benefits of passing by pointer over passing by reference in C++?
...ment can be NULL when, most of the time, a NULL value should be forbidden. Read litb's answer for a complete answer.
– paercebal
Dec 3 '08 at 10:12
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Chrome extension: accessing localStorage in content script
...: 'hi'}, function() {
console.log('Settings saved');
});
// Read it using the storage API
chrome.storage.sync.get(['foo', 'bar'], function(items) {
message('Settings retrieved', items);
});
To use it, make sure you define it in the manifest:
"permissions": [
"...
How do I get the RootViewController from a pushed controller?
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The 2nd line should read: UIViewController *rootViewController = [viewControllers objectAtIndex:viewControllers.count - 1];
– Billy
May 19 '16 at 19:44
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More elegant way of declaring multiple variables at the same time
... done quite succinctly with a nested list comprehension, but here's a very readable implementation:
>>> def invert_dict(inverted_dict):
... elements = inverted_dict.iteritems()
... for flag_value, flag_names in elements:
... for flag_name in flag_names:
... yiel...
What is the purpose of Order By 1 in SQL select statement?
I'm reading through some old code at work, and have noticed that there are several views with an order by 1 clause. What does this accomplish?
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Manually put files to Android emulator SD card
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If you are using Eclipse's File Explorer and getting "read only file system" errors, first run from cmdline: adb remount
– Sagi Mann
Aug 2 '12 at 14:26
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How to get the width and height of an android.widget.ImageView?
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@jww I don't really reply to negative voters :p, First read about getWidth and getMeasured in Android documentation. then come and down vote people.
– AZ_
Sep 9 '14 at 2:37
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Find files and tar them (with spaces)
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Sure thing, it's a parameter to -T, and it means read the file names from standard input: If you give a single dash as a file name for `--files-from', (i.e., you specify either --files-from=- or -T -), then the file names are read from standard input
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