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Get key by value in dictionary
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There is none. dict is not intended to be used this way.
dictionary = {'george': 16, 'amber': 19}
search_age = input("Provide age")
for name, age in dictionary.items(): # for name, age in dictionary.iteritems(): (for Python 2.x)
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“Server” vs “Data Source” in connection string
...g as there aren't conflicting usages, you may as well allow as many common ones as exist in older standards, to ease porting code.
– Damien_The_Unbeliever
Oct 19 '18 at 11:26
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What's is the difference between include and extend in use case diagram?
...re duplicated in multiple use cases. The included use case cannot stand alone and the original use case is not complete without the included one. This should be used sparingly and only in cases where the duplication is significant and exists by design (rather than by coincidence).
For example, th...
What is the Windows equivalent of the diff command?
... similar to this : here .
I tried using the comp command like it mentioned, but if I have two files, one with data like "abcd" and the other with data "abcde", it just says the files are of different sizes. I wanted to know where exactly they differ. In Unix, the simple diff tells me which row ...
git cherry-pick says “…38c74d is a merge but no -m option was given”
...mmit has two or more parents, it also represents two or more diffs - which one should be applied?
You're trying to cherry pick fd9f578, which was a merge with two parents. So you need to tell the cherry-pick command which one against which the diff should be calculated, by using the -m option. For ...
PHP Multidimensional Array Searching (Find key by specific value)
... 2
Explanation
The function array_search() has two arguments. The first one is the value that you want to search. The second is where the function should search. The function array_column() gets the values of the elements which key is 'uid'.
Summary
So you could use it as:
array_search('brevi...
iOS 6: How do I restrict some views to portrait and allow others to rotate?
I have an iPhone app that uses a UINavigationController to present a drill-down interface: First one view, then another, up to four levels deep. I want the first three views restricted to portrait orientation and only the last view should be allowed to rotate to landscape. When returning from the ...
Create singleton using GCD's dispatch_once in Objective-C
...ingleton is not a certainty of its immortality, but certainty that we have one instance. What if that singleton decrement a semaphore? You can't just arbitrary say that it will always exists.
– jacekmigacz
Jan 25 '13 at 13:40
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What is the fastest way to compare two sets in Java?
...to do in the comparison logic... ie what happens if you find an element in one set not in the other? Your method has a void return type so I assume you'll do the necessary work in this method.
More fine-grained control if you need it:
if (!firstSet.containsAll(secondSet)) {
// do something if ne...
Add a common Legend for combined ggplots
...legend(p1)
p3 <- grid.arrange(arrangeGrob(p1 + theme(legend.position="none"),
p2 + theme(legend.position="none"),
nrow=1),
mylegend, nrow=2,heights=c(10, 1))
Here is the resulting plot:
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