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Check if a method exists
...d instead of others (deprecated ones), since self has not been created yet and respondsToSelector will always return NO.
– LightMan
Sep 6 '13 at 18:34
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Class constants in python
...ternatively, you could create intermediate classes: HugeAnimal, BigAnimal, and so on. That would be especially helpful if each animal class will contain different logic.
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Finding index of character in Swift String
...ot the only one who couldn't find the solution.
String doesn't implement RandomAccessIndexType. Probably because they enable characters with different byte lengths. That's why we have to use string.characters.count (count or countElements in Swift 1.x) to get the number of characters. That also app...
How can I remove a button or make it invisible in Android?
How can I remove a button in Android, or make it invisible?
14 Answers
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Get yesterday's date using Date [duplicate]
... through 365/366 days for current year. get previous date for each of them and see second delta between two dates. You don't need to run it for each day may be pick up selective corner dates (1st Jan, 1st Mar, 28 or 29th Feb)
– Jigar Joshi
Feb 20 '18 at 19:15
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Regex to match any character including new lines
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No, m affects the ^ and $ anchors but not ..
– BoltClock♦
Nov 28 '11 at 22:50
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How do you install ssh-copy-id on a Mac?
...d out my brew library was a bit overdue for a refresh. Running brew update and then installing again solved the problem.
– LapplandsCohan
Sep 29 '16 at 18:30
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Getting all selected checkboxes in an array
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and what to do if uncheck check box, to remove value from array
– Jubin Patel
Jun 7 '13 at 10:38
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How to prepend a string to a column value in MySQL?
...hat:
UPDATE tbl SET col=CONCAT('test',col);
If you want to get cleverer and only update columns which don't already have test prepended, try
UPDATE tbl SET col=CONCAT('test',col)
WHERE col NOT LIKE 'test%';
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Change the Right Margin of a View Programmatically?
...extView. Basically, you'll want to get the TextView's LayoutParams object, and modify the margins, then set it back to the TextView. Assuming it's in a LinearLayout, try something like this:
TextView tv = (TextView)findViewById(R.id.my_text_view);
LinearLayout.LayoutParams params = (LinearLayout.Lay...