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How can I check whether a option already exist in select by JQuery
...w what "yourValue" is (for example, if it's user input). Building a single string just to let "jQuery do it" would require you to do input sanitization, and you end up with code practices that have haunted SQL for decades. So a -1 is completely unwarranted. The question even states that they want to...
Java regular expression OR operator
...
You can just use the pipe on its own:
"string1|string2"
for example:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|string2", "blah"));
Output:
blah, blah, string3
The main reason to use parentheses is to limit the scope o...
How to install Android SDK Build Tools on the command line?
...dk --filter ...
The other answers don't mention that you can use constant string identifiers instead of indexes (which will change) for the filter options. This is helpful for unattended or scripted installs. Man for --filter option:
... This also accepts the identifiers returned by 'list sdk -...
How to check if field is null or empty in MySQL?
...ld1
from tablename
If you only want to check for null and not for empty strings then you can also use ifnull() or coalesce(field1, 'empty'). But that is not suitable for empty strings.
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Remote debugging with Android emulator
... make each windows system as much of a thin-client as possible without any extra services (such as sshd) or firewall holes.
So here is the senario:
System-A: Windows7 system with android emulator running
System-B: Ubuntu server with SDK installed
The problem as described earlier is that the emu...
Parsing a string into a boolean value in PHP
Today I was playing with PHP, and I discovered that the string values "true" and "false" are not correctly parsed to boolean in a condition, for example considering the following function:
...
Python date string to date object
How do I convert a string to a date object in python?
7 Answers
7
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How to convert a Base64 string into a Bitmap image to show it in a ImageView?
I have a Base64 String that represents a BitMap image.
6 Answers
6
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Catch a thread's exception in the caller thread in Python
...rns to the main thread immediately when an exception is called
requires no extra user defined classes because it does not need:
an explicit Queue
to add an except else around your work thread
Source:
#!/usr/bin/env python3
import concurrent.futures
import time
def func_that_raises(do_raise)...
Android LocationClient class is deprecated but used in documentation
....OnConnectionFailedListener,
LocationListener {
private final String TAG = "MyAwesomeApp";
private TextView mLocationView;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
@Override
protected void onCreate(Bundle savedInstanceSt...