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What is a magic number, and why is it bad? [closed]
...tion("password");
}
}
}
It improves readability of the code and it's easier to maintain. Imagine the case where I set the size of the password field in the GUI. If I use a magic number, whenever the max size changes, I have to change in two code locations. If I forget one, this will l...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
I am going through some MVVM articles, primarily this and this .
11 Answers
11
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When should I use RequestFactory vs GWT-RPC?
...ms of commonalities of client and server because
On the client you need to convert "PROXIES" to your client domain objects and vice-versa. This is completely ridiculous. It could be done in few lines of code declaratively, but there's NO SUPPORT FOR THAT! If only we could map our domain objects to p...
get all characters to right of last dash
...
@LukeH: Thanks for the heads up. I didn't check and mistakenly assumed it would throw.
– Jon
Mar 16 '11 at 15:33
3
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E731 do not assign a lambda expression, use a def
...my code quality checker complains about lambda being a named function so I convert it into a function.
def f(x):
return x + offset
a = map(f, simple_list)
b = map(f, another_simple_list)
Now the checker complains that a function has to be bounded by one blank line before and after.
def f(x...
How to printf uint64_t? Fails with: “spurious trailing ‘%’ in format”
...
The ISO C99 standard specifies that these macros must only be defined if explicitly requested.
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
... now PRIu64 will work
...
What's the common practice for enums in Python? [duplicate]
... Python.
The best way I've found to emulate them is by overridding _ str _ and _ eq _ so you can compare them and when you use print() you get the string instead of the numerical value.
class enumSeason():
Spring = 0
Summer = 1
Fall = 2
Winter = 3
def __init__(self, Type):
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get string value from UISegmentedControl
... answered Mar 22 '10 at 1:22
Brandon BodnarBrandon Bodnar
8,02511 gold badge3333 silver badges4141 bronze badges
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How can I change the image of an ImageView? [duplicate]
I have just started learning android. And i don't know How can I change the image of an ImageView ? ie it has some Image which was set in the layout but i want to change that image through coding how should i do it ?
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How can I add comments in MySQL?
...with the COMMENT option. The comment is displayed by the SHOW CREATE TABLE and SHOW FULL COLUMNS statements. This option is operational as of MySQL 4.1. (It is allowed but ignored in earlier versions.)"
As an example
--
-- Table structure for table 'accesslog'
--
CREATE TABLE accesslog (
aid int(...