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MySQL error: key specification without a key length
... distinct indexed values and total number of rows. Here is one example for test table:
+-----+-----------+
| id | value |
+-----+-----------+
| 1 | abc |
| 2 | abd |
| 3 | adg |
+-----+-----------+
If we index only the first character (N=1), then index table will look...
Check if a string contains a string in C++
... answered Oct 8 '16 at 23:12
Testing123Testing123
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How to create Drawable from resource
I have an image res/drawable/test.png (R.drawable.test).
I want to pass this image to a function which accepts Drawable , e.g. mButton.setCompoundDrawables() .
...
StringBuilder vs String concatenation in toString() in Java
... reference also states that this is optional. In fact, I just did a simple test with JRE 1.6.0_15 and I didn't see any compiler optimization in the decompiled class.
– bruno conde
Oct 7 '09 at 16:07
...
In javascript, is an empty string always false as a boolean?
...
@Bruno, You can perform the same test with NaN and undefined. They are not false but they are falsy. Which is what was asked.
– Joseph
Feb 25 '16 at 23:52
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How can I tell IntelliJ's “Find in Files” to ignore generated files?
...of getting the same result without needing to configure a custom scope.
I tested this in IntelliJ Ultimate 14.1.4. I have no idea how it behaves in other versions, but I suspect most of v14 at least will behave the same.
sh...
Does Python have “private” variables in classes?
...ariation of private variables in the underscore convention.
In [5]: class Test(object):
...: def __private_method(self):
...: return "Boo"
...: def public_method(self):
...: return self.__private_method()
...:
In [6]: x = Test()
In [7]: x.public_method(...
How do I abort the execution of a Python script? [duplicate]
...
And I even tested it in a shell first :-)
– Sec
Oct 7 '08 at 16:50
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How to unset a JavaScript variable?
... window property and its value will be 10 at the end of the code:
function test() { a = 5; var a = 10; }
The above discussion is when "strict mode" is not enabled. Lookup rules are a bit different when using "strict mode" and lexical references that would have resolved to window properties without...
Suppress warning CS1998: This async method lacks 'await'
...ith #pragma:
#pragma warning disable 1998
public async Task<object> Test()
{
throw new NotImplementedException();
}
#pragma warning restore 1998
If this is common enough, you could put the disable statement at the top of the file and omit the restore.
http://msdn.microsoft.com/en-us/li...