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What does immutable mean?
...t that str references.
If the string was mutable, does that
mean the 2nd alert() would return oo
as well?
Technically, no, because the substring method returns a new string. Making an object mutable, wouldn't change the method. Making it mutable means that technically, you could make it ...
Reference: Comparing PHP's print and echo
... PRINT ~1 ~0
2 PRINT ~2 ~1
3 PRINT ~3 ~2
4 FREE ~3
...
How to run test methods in specific order in JUnit4?
...
240
I think it's quite important feature for JUnit, if author of JUnit doesn't want the order f...
pass **kwargs argument to another function with **kwargs
...3 arguments: filename, mode and a dictionary (kwargs). But Python expects: 2 formal arguments plus keyword arguments.
By prefixing the dictionary by '**' you unpack the dictionary kwargs to keywords arguments.
A dictionary (type dict) is a single variable containing key-value pairs.
"Keyword argu...
MySQL search and replace some text in a field
... |
edited Nov 7 '17 at 11:20
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How to find the .NET framework version of a Visual Studio project?
...
It depends which version of Visual Studio:
In 2002, all projects use .Net 1.0
In 2003, all projects use .Net 1.1
In 2005, all projects use .Net 2.0
In 2008, projects use .Net 2.0, 3.0, or 3.5; you can change the version in Project Properties
In 2010, projects use .Net 2....
How to implement a queue with three stacks?
...a.edu/webs/people/okasaki/jfp95.ps and it seems that he actually uses only 2 stacks for the O(1) version that has lazy evaluation. The problem is that it's really based on lazy evaluation. The question is if it can be translated to a 3-stack algorithm without lazy evaluation.
UPDATE: Another relate...
Exit codes in Python
...
234
What you're looking for in the script is calls to sys.exit(). The argument to that method is ...
Declaring variables inside loops, good practice or bad practice?
... Here, retainValue is still valid; tmpValue no longer */
}
For question #2:
The variable is allocated once, when the function is called. In fact, from an allocation perspective, it is (nearly) the same as declaring the variable at the beginning of the function. The only difference is the scope: th...
How can I add the new “Floating Action Button” between two widgets/layouts
...
Best practice:
Add compile 'com.android.support:design:25.0.1' to gradle file
Use CoordinatorLayout as root view.
Add layout_anchorto the FAB and set it to the top view
Add layout_anchorGravity to the FAB and set it to: bottom|right|end
<android.support.design.widget.Coord...