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Remove a marker from a GoogleMap
...r (MarkerOptions options)
So when you add a marker to a GoogleMap by specifying the options for the marker, you should save the Marker object that is returned (instead of the MarkerOptions object that you used to create it). This object allows you to change the marker state later on. When you ar...
'console' is undefined error for Internet Explorer
...
Try
if (!window.console) console = ...
An undefined variable cannot be referred directly. However, all global variables are attributes of the same name of the global context (window in case of browsers), and accessing an undefi...
Test if object implements interface
... operator does the work in a NullPointerException safe way. For example:
if ("" instanceof java.io.Serializable) {
// it's true
}
yields true. Since:
if (null instanceof AnyType) {
// never reached
}
yields false, the instanceof operator is null safe (the code you posted isn't). ...
In C#, how to check if a TCP port is available?
... use a TcpClient or generally to connect to a socket how can I first check if a certain port is free on my machine?
19 Answ...
How to check if a column exists in Pandas
Is there a way to check if a column exists in a Pandas DataFrame?
3 Answers
3
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switch case statement error: case expressions must be constant expression
...le.
The solution for this is simple: Convert the switch statement into an if-else statement.
public void onClick(View src)
{
int id = src.getId();
if (id == R.id.playbtn){
checkwificonnection();
} else if (id == R.id.stopbtn){
Log.d(TAG, "onClick: stopping srvice");
...
Getting current device language in iOS?
...he currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (United States). In order to retrieve the currently selected language, you can do:
NSString * language = [[NSLocale preferredLanguag...
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
Will ConfigurationManager.AppSettings["blah"] throw an exception if "blah" doesn't exist in the web/app.config?
6 Answers
...
How to comment lines in rails html.erb files? [duplicate]
...ingle line use
<%# commented line %>
to comment a whole block use a if false to surrond your code like this
<% if false %>
code to comment
<% end %>
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How to add two strings as if they were numbers? [duplicate]
...escribes the unary plus operator and some of the useful affects it has on different data types. xkr.us/articles/javascript/unary-add
– mrtsherman
Jan 23 '12 at 19:22
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