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How to check if function exists in JavaScript?
...luating to true, not necessarily a function (e.g. it could be a boolean, a string, etc). For example see jsfiddle.net/j5KAF/1
– Ohad Schneider
Apr 13 '14 at 7:53
...
How to make a copy of a file in android?
...
These worked nice for me
public static void copyFileOrDirectory(String srcDir, String dstDir) {
try {
File src = new File(srcDir);
File dst = new File(dstDir, src.getName());
if (src.isDirectory()) {
String files[] = src.list();
int f...
Java 8: Lambda-Streams, Filter by Method with Exception
... throw runtime(e);
}
}
public static void main(String[] args) {
class Account{
String name;
Account(String name) { this.name = name;}
public boolean isActive() throws IOException {
return name.startsWith("a"...
RegEx: Grabbing values between quotation marks
...
how to avoid empty strings?
– Vikas Bansal
Jan 16 '19 at 13:00
|
show 8 more comment...
Value cannot be null. Parameter name: source
... what you'd expect. This error message often crops up when your connection string is wrong.
At a guess, you'll need something like this:
<connectionStrings>
<add name="hublisherEntities" connectionString="Data Source=localhost;Initial Catalog=hublisher;Integrated Security=True;" provi...
How do I get the parent directory in Python?
...y have to exist. There are a lot of pathname methods that does nothing but string manipulation. To verify if the pathname actually exist requires a disk access. Depends on the application this may or may not be desirable.
– Wai Yip Tung
May 18 '10 at 19:45
...
C# getting its own class name
... class called MyProgram , is there a way of retrieving " MyProgram " as a string?
9 Answers
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How to check if a URL is valid
How can I check if a string is a valid URL?
9 Answers
9
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Fragment MyFragment not attached to Activity
...d onPostExecute(Void result){
if(isAdded()){
getResources().getString(R.string.app_name);
}
}
To avoid onPostExecute from being called when the Fragment is not attached to the Activity is to cancel the AsyncTask when pausing or stopping the Fragment. Then isAdded() would not be nec...
How do I get hour and minutes from NSDate?
...
Use an NSDateFormatter to convert string1 into an NSDate, then get the required NSDateComponents:
Obj-C:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"<your date format goes here"];
NSDate *date = [dateFo...