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How do I get the first element from an IEnumerable in .net?
...IEnumberable<string> aa;
string a = (from t in aa where t.Equals("") select t.Value).ToArray()[0];
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What does Visual Studio mean by normalize inconsistent line endings?
...using Visual Studio 2012:
Go to menu File → Advanced Save Options → select Line endings type as Windows (CR LF).
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Android Studio/Intellij Idea: “Table of Contents” for a class
... File Structure).
It shows the list of members of the current class. Select an element you want to navigate to and press the Enter key or the F4 key. To easily locate an item in the
list, just start typing its name.
Also, as danny117 points out, you can use Alt/⌘+7 to show / hide the sam...
XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv
... // Database test code from the sql.js project
var test = sqldb.exec("SELECT * FROM Genre");
document.getElementById("test").textContent = JSON.stringify(test);
</script>
I imagine it would be trivial to modify this to read JSON, maybe even XML; I'll leave that as an exercise for th...
Android get current Locale, not default
...process from the system property settings, so it will represent the Locale selected on that device when the application was launched. Typically, this is fine, but it does mean that if the user changes their Locale in settings after your application process is running, the value of getDefaultLocale(...
How do I prevent an Android device from going to sleep programmatically?
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This should be the selected answer. Simple, clean and as Android intended. Thank you.
– Lior Iluz
Jan 21 '14 at 5:44
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Get column index from column name in python pandas
...pecified label or are duplicates, the index with the larger index value is selected:
df = pd.DataFrame(
{"pear": [1, 2, 3], "apple": [2, 3, 4], "orange": [3, 4, 5]},
index=[0, .9, 1.1])
df.index.get_indexer([0, 1])
# array([ 0, -1], dtype=int64)
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Check/Uncheck checkbox with JavaScript (jQuery or vanilla)?
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You really don't need the array index if you are only selecting one element. But I guess if you want to be explicit. haha
– Rizowski
Apr 22 '15 at 18:46
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Sample random rows in dataframe
...356774 -0.1640883
9 -0.3983045 0.7157506
10 -0.9060305 2.3234110
Then select some rows at random:
> df[sample(nrow(df), 3), ]
X1 X2
9 -0.3983045 0.7157506
2 -1.1334614 -0.1973846
10 -0.9060305 2.3234110
...
Unable to create Android Virtual Device
... "SDK Platforms," check the "Show Packages" box to see the system images.
Select the ones you want, click "Apply" and voilà!
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