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dealloc in Swift
..., namely to remove an NSNotificationCenter notification. Implementing dealloc results in a Swift compiler error:
5 Answ...
What does passport.session() middleware do?
...entication system using Passport.js using Easy Node Authentication: Setup and Local tutorial .
4 Answers
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Live character count for EditText
... //This sets a textview to the current length
mTextView.setText(String.valueOf(s.length()));
}
public void afterTextChanged(Editable s) {
}
};
you set the TextWatcher for the edittext with
mEditText.addTextChangedListener(mTextEditorWatcher);
...
How do I get a distinct, ordered list of names from a DataTable using LINQ?
... this
var names = (from DataRow dr in dataTable.Rows
select (string)dr["Name"]).Distinct().OrderBy( name => name );
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Rounding a double to turn it into an int (java)
...
import java.math.*;
public class TestRound11 {
public static void main(String args[]){
double d = 3.1537;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(2,BigDecimal.ROUND_HALF_UP);
// output is 3.15
System.out.println(d + " : " + round(d, 2));
// output is 3.154
...
How to get the device's IMEI/ESN programmatically in android?
...droid.telephony.TelephonyManager.getDeviceId().
This will return whatever string uniquely identifies the device (IMEI on GSM, MEID for CDMA).
You'll need the following permission in your AndroidManifest.xml:
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
in order t...
Why does an NSInteger variable have to be cast to long when used as a format argument?
...NSLog statements, which are just debugging aids after all, but also for [NSString stringWithFormat:] and the various derived messages, which are legitimate elements of production code.
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How to add a new row to datagridview programmatically
...Columns[0].Name = "column2";
dataGridView1.Columns[1].Name = "column6";
string[] row1 = new string[] { "column2 value", "column6 value" };
dataGridView1.Rows.Add(row1);
Or you need to set there values individually use the propery .Rows(), like this:
dataGridView1.Rows[1].Cells[0].Value = "ce...
Change File Extension Using C#
... Path.ChangeExtension("c:/my documents/my images/cars/a where a is a.jpg", string.Empty) will remove the extension from the path defined as the first method parameter; the newPath string variable will contain c:/my documents/my images/cars/a where a is a. value after this operation.
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What's better at freeing memory with PHP: unset() or $var = null
...red to hold whatever value it was previously holding. For example, a long string. If the string wasn't a constant and its reference count drops to zero, then that memory should be freed. Unset is cleaner - it no longer maintains a reference. You do have to wait for garbage collection, but it's s...