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Combine two or more columns in a dataframe into a new column with a new name
...g paste()? For above example, x column should have data as 2-aa, then 3-bb and 5-cc.
– Chetan Arvind Patil
Oct 6 '17 at 2:28
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Convert NSURL to local file path
...ipped.
Per RFC 3986, the leading slash after the authority (host name and port) portion is treated as part of the path.
Note that you can create such a URL with +[NSURL fileURLWithPath:].
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What is the use of style=“clear:both”?
...s answer, check out Floatutorial, which walks you through how CSS floating and clearing works.
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How to print the values of slices
...es of an array without brackets, you can use a combination of fmt.Sprint() and strings.Trim()
a := []string{"a", "b"}
fmt.Print(strings.Trim(fmt.Sprint(a), "[]"))
fmt.Print(a)
Returns:
a b
[a b]
Be aware though that with this solution any leading brackets will be lost from the first value and ...
Node.JS constant for platform-specific new line?
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Node.js 0.6.x and earlier:
Unfortunately there isn't a constant, but you determine it yourself using:
var nl = (process.platform === 'win32' ? '\r\n' : '\n')
(note this is quite a naive solution)
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Java reflection - impact of setAccessible(true)
... should suppress checks for Java language access control when it is used
And a runnable example:
public class FieldAccessible {
public static class MyClass {
private String theField;
}
public static void main(String[] args) throws Exception {
MyClass myClass = new MyC...
How to solve Operator '!=' cannot be applied to operands of type 'T' and 'T' [duplicate]
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I can't believe my answer survived a year and a half with no one pointing out the huge typo...
– user541686
Oct 21 '13 at 21:11
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Strange function in ActivityManager: isUserAMonkey. What does this mean, what is its use?
I found the following function in package android.app.ActivityManager .
2 Answers
2
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ASP MVC href to a controller/view
...ntroller="Users" asp-action="Index"></a>
(Valid for ASP.NET 5 and MVC 6)
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Evaluate if list is empty JSTL
...nctions" prefix="fn" %>
<c:if test="${fn:length(list) > 0}">
And here's the tag documentation.
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