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How do I change the value of a global variable inside of a function
...the function; no magic, just use it's name. If it's been created globally, then you'll be updating the global variable.
You can override this behaviour by declaring it locally using var, but if you don't use var, then a variable name used in a function will be global if that variable has been decla...
Android Studio suddenly cannot resolve symbols
...
None of the things mentioned earlier here did actually work for me. But then I found this menu entry in the file menu Invalidate Caches/Restart which appears to have fixed the problem.
I don't really know what happened in the background but when Android Studio started up again the status bar sa...
How do I make a semi transparent background?
...
@Sean Is it more specific and intention-revealing, then? Personally I prefer to use it in this case, but is there a reason that's not a good preference?
– Dave Slutzkin
Feb 24 at 23:23
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How to get all count of mongoose model?
...ow' }, function(err, docCount) {
//see other example
}
Option 2: Use .then()
A mongoose query has .then() so it’s “thenable”. This is for a convenience and query itself is not a promise.
For example, count all documents in a collection using .estimatedDocumentCount():
someModel
.estim...
How do SQL EXISTS statements work?
...T like the subquery is executed on the whole and gets the 'true/false' and then tries to match this 'true/false' condition with outer query.
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How to expand/collapse a diff sections in Vimdiff?
...al section on options, via the section on diff:
set diffopt=<TAB>, then update or add context:n.
You should also take a look at the user manual section on diff.
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How do I read and parse an XML file in C#?
...("c:\\temp.xml");
or
doc.LoadXml("<xml>something</xml>");
then find a node below it ie like this
XmlNode node = doc.DocumentElement.SelectSingleNode("/book/title");
or
foreach(XmlNode node in doc.DocumentElement.ChildNodes){
string text = node.InnerText; //or loop through its...
How to set the text color of TextView in code?
...extView.setTextColor(0xAARRGGBB);
Where you have an alpha-channel first, then the color value.
Check out the complete manual of course, public class Color extends Object.
1This code used to be in here as well:
textView.setTextColor(getResources().getColor(R.color.errorColor));
This method ...
How to enable file sharing for my app?
...able it so that users can see my app in iTunes in the File Sharing tab and then just drag+drop photos to the app?
7 Answers...
What are the most-used vim commands/keypresses?
...uffer above cursor line
xp swap two characters (x to delete one character, then p to put it back after the cursor position)
Blocks
v visual block stream; V visual block line; ^V visual block column
most motion commands extend the block to the new cursor position
o moves the cursor to the other...