453 questions
I saw this code in RailsCast and I don't know what map(&:name) is like (&:name).def tag_names @tag_names || tags.map(&:name).join(' ')end
...!ErrorHasOccured() ??!??! HandleError();`...I've never seen an operator like this in C code.All I've seen so far is ? is to go inside a trinomial operator? Can we use it together?I can't find anyth...
I need a lot of code to check the results of the database over and over again.Cursor cursor = db.rawQuery(...);cursor.moveToFirst();while (cursor.isAfterLast() == false) { ... cursor.moveToNext();}Cur...
I posted a question earlier, but as soon as I solved that error, I encountered a new error... Like this, it's a code that combines three RGB images to make one image, but does anyone know what the pro...
first = ['a', 'b', 'c', 'd', 'e' ] second = ['x', 'y', 'z' ] third = ['apple', 'banana' ] N = 10I'd like to repeat it N times with For Moon using the list above. I can't think of an answer. T If I do ...
My computer specifications are Windows XP, 1.21 gigabytes, and my CPU uses 2.67 GHz CeleronAndroid emulators are very slow. Can't you do it fast?
'''the solution of a linear equation'''from sympy import Symbol, solvex=Symbol('x')expr = x-5-7solve(expr)The program is the same as above There's an error at the bottom. Traceback (most recent call l...
The view with the cursor now is the Wizwick editor. In the emulator, when you click on the editor, the keyboard does not block the editor, but when you run it with the actual terminal, the keyboard bl...
y = 0for i in range(4): Text(Point(-0.3, y), y).draw(win) y += 10 max = ????What I don't know is that I don't know what to do with the above maxLike that, y would be 0, 10, 20, 30I want to print 30 wh...
I am a freshman in college who entered Python. I tried to express the dead rule operation as a function, but the first elif keeps showing an error window called invalid syntax with a red line. I don't...
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