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Convert Array to Object
...bject.assign:
The Object.assign() method is used to copy the values of all
enumerable own properties from one or more source objects to a target
object. It will return the target object.
Object.assign({}, ['a','b','c']); // {0:"a", 1:"b", 2:"c"}
The own length property of the array is no...
When and why to 'return false' in JavaScript?
...s, such as onsubmit, returning false is a way to tell the event to not actually fire. So, say, in the onsubmit case, this would mean that the form is not submitted.
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How can I convert spaces to tabs in Vim or Linux?
...k for all your text, not only spaces in the begin of the line. That mean a string like: "Hey,␣this␣␣␣␣is␣4␣spaces" will become "Hey,␣this⇥is␣4␣spaces", but its not! its a tab!.
To settle this little problem I recomend a search, instead of retab.
:%s/^\(^I*\)␣␣␣␣/\1^I/g
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Split a string at uppercase letters
What is the pythonic way to split a string before the occurrences of a given set of characters?
16 Answers
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Dynamic type languages versus static type languages
...t be proven by the compiler. A simple example being if(1) a = 3; else a = "string";, surely since it's always true, the else-branch will never be executed in the program, and no type error shall occur. But it can't prove these cases in a general way, so it's rejected. This is the major weakness of a...
java: (String[])List.toArray() gives ClassCastException
...en you use
toArray()
it returns an Object[], which can't be cast to a String[] (even tho the contents are Strings) This is because the toArray method only gets a
List
and not
List<String>
as generics are a source code only thing, and not available at runtime and so it can't deter...
Why should I use the keyword “final” on a method parameter in Java?
...e use of this method:
// this.doSomething( "tiger" );
void doSomething( String arg ) {
String x = arg; // Both variables now point to the same String object.
x = "elephant"; // This variable now points to a different String object.
arg = "giraffe"; // Ditto. Now neither variable points...
SQL variable to hold list of integers
...d a list of integers. But what you can do is store a list of integers as a string.
DECLARE @listOfIDs varchar(8000);
SET @listOfIDs = '1,2,3,4';
You can then split the string into separate integer values and put them into a table. Your procedure might already do this.
You can also use a dynamic ...
Send data from activity to fragment in Android
...ty you send data with intent as:
Bundle bundle = new Bundle();
bundle.putString("edttext", "From Activity");
// set Fragmentclass Arguments
Fragmentclass fragobj = new Fragmentclass();
fragobj.setArguments(bundle);
and in Fragment onCreateView method:
@Override
public View onCreateView(LayoutIn...
LISTAGG in Oracle to return distinct values
...:I tried the code- and got the error message as below ORA-01489: result of string concatenation is too long 01489. 00000 - "result of string concatenation is too long" *Cause: String concatenation result is more than the maximum size.
– Priyanth
Jul 17 '12 ...