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How do you create a Distinct query in HQL
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56
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Extracting specific columns from a data frame
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how do I execute a further command onto this subset? E.g. I want to compute the rowMean: "df1 %>% rowMeans(select(A, B, E))" does not work.
– Ben
May 11 at 6:14
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Check if a value exists in ArrayList
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Is there a version that compares object refferences?
– Tomáš Zato - Reinstate Monica
Feb 10 '15 at 22:37
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For..In loops in JavaScript - key value pairs
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If you can use ES6 natively or with Babel (js compiler) then you could do the following:
const test = {a: 1, b: 2, c: 3};
for (const [key, value] of Object.entries(test)) {
console.log(key, value);
}
Which will print out this output:
a 1
b 2
c 3
The...
Replacing a fragment with another fragment inside activity group
...id.fragment_container, newFragment);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
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What is the difference between substr and substring?
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Sounds like a common source of error. Good to know the difference. Found additional comments about this here: rapd.wordpress.com/2007/07/12/javascript-substr-vs-substring
– schnaader
Sep 19 '10 at 11:...
presentViewController and displaying navigation bar
...er:navigationController
animated:YES
completion:^{
}];
You should see a navigation bar when your view is presented modally.
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How should one go about choosing a default TCP/IP port for a new service?
... selecting a default port? Assume that this app will be installed on many computers, and that avoiding port conflicts is desired.
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Initializing C# auto-properties [duplicate]
... book to see if the language design team got it right." meta.stackexchange.com/a/9174
– Dmitry Fedorkov
Jul 9 '13 at 12:20
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Removing multiple files from a Git repo that have already been deleted from disk
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FYI: this answer merged from stackoverflow.com/questions/1402776/…
– Shog9
Jul 24 '14 at 15:51
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