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Split data frame string column into multiple columns
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Use stringr::str_split_fixed
library(stringr)
str_split_fixed(before$type, "_and_", 2)
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java.io.Console support in Eclipse IDE
...stem.out instead of Console when using Eclipse. For example, instead of:
String line = System.console().readLine();
You can use:
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String line = bufferedReader.readLine();
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Get spinner selected items text?
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Spinner spinner = (Spinner)findViewById(R.id.spinner);
String text = spinner.getSelectedItem().toString();
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How to match, but not capture, part of a regex?
I have a list of strings. Some of them are of the form 123-...456 . The variable portion "..." may be:
7 Answers
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Round a double to 2 decimal places [duplicate]
... want to use BigDecimal. And while at it, use the constructor that takes a String, never the one taking double. For instance, try executing this:
System.out.println(new BigDecimal(1.03).subtract(new BigDecimal(0.41)));
System.out.println(new BigDecimal("1.03").subtract(new BigDecimal("0.41")));
S...
(this == null) in C#!
...{
// Methods
public Derived()
{
base..ctor(new Func<string>(Program.Derived.<.ctor>b__0));
return;
}
[CompilerGenerated]
private static string <.ctor>b__0()
{
string CS$1$0000;
CS$1$0000 = CS$1$0000.CheckNull();
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Efficient way to remove keys with empty strings from a dict
...dict and would like to remove all the keys for which there are empty value strings.
17 Answers
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ASP.NET MVC Yes/No Radio Buttons with Strongly Bound Model MVC
... id = "married-true", @checked = 'checked' }
Note that you can bind to a string by replacing true and false with the string values.
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Find where java class is loaded from
...an example:
package foo;
public class Test
{
public static void main(String[] args)
{
ClassLoader loader = Test.class.getClassLoader();
System.out.println(loader.getResource("foo/Test.class"));
}
}
This printed out:
file:/C:/Users/Jon/Test/foo/Test.class
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How to get the name of the current method from code [duplicate]
...o have a helper method:
[MethodImpl(MethodImplOptions.NoInlining)]
public string GetCurrentMethod()
{
var st = new StackTrace();
var sf = st.GetFrame(1);
return sf.GetMethod().Name;
}
Updated with credits to @stusmith.
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