大约有 15,900 项符合查询结果（耗时：0.0106秒） [XML]
How would you access Object properties from within an object method? [closed]
.... I suggest the incendiary article by Allen Holub "Getters And Setters Are Evil". Granted, the title is for shock value, but the author makes valid points.
Essentially, if you have getters and setters for each and every private field, you are making those fields as good as public. You'd be very har...
When is del useful in python?
...exception is caught. In particular, if you do something like
try:
do_evil()
except:
exc_type, exc_value, tb = sys.exc_info()
if something(exc_value):
raise
the traceback, tb ends up in the locals of the call stack, creating a circular reference that cannot be garbage collecte...
Why can't my program compile under Windows 7 in French? [closed]
...at 18:28
Gilles 'SO- stop being evil'Gilles 'SO- stop being evil'
87.9k2424 gold badges184184 silver badges224224 bronze badges
...
Iterating each character in a string using Python
... through the string, use enumerate():
>>> for i, c in enumerate('test'):
... print i, c
...
0 t
1 e
2 s
3 t
share
|
improve this answer
|
follow
...
Test if string is a guid without throwing exceptions?
...0 good: 126,120 ticks
10,000 bad: 23,134 ticks
COM Intertop (Fastest) Answer:
/// <summary>
/// Attempts to convert a string to a guid.
/// </summary>
/// <param name="s">The string to try to convert</param>
/// <param name="value">Upon return will contain t...
Best way to test SQL queries [closed]
...nctions. This makes them shorter, simpler, easier to comprehend, easier to test, easier to refactor. And it allows you to add "shims" between them, and "wrappers" around them, just as you do in procedural code.
How do you do this? By making each significant thing a query does into a view. Then you ...
How do I set up email confirmation with Devise?
...27.0.0.1",
:port => 25,
:domain => 'yourdomain.com'
}
6 To test the setup in development install the mailcatcher gem, that you will use as a SMTP server in development, catching all incoming mails and displaying them on http://localhost:1080/:
gem install mailcatcher
Once installe...
How do I format a Microsoft JSON date?
... do this in a variety of ways without 'eval'. Crockford says that 'eval Is Evil' because it is less readable and is less secure, furthermore he may further imply that it is less efficient and more dangerous because it hits the javascript compiler.
– Mark Rogers
...
Remove blank attributes from an Object in Javascript
...
You can loop through the object:
var test = {
test1 : null,
test2 : 'somestring',
test3 : 3,
}
function clean(obj) {
for (var propName in obj) {
if (obj[propName] === null || obj[propName] === undefined) {
delete obj[propName];
}
...
VBA - how to conditionally skip a for loop iteration
I have a for loop over an array. What I want to do is test for a certain condition in the loop and skip to the next iteration if true:
...