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How to get JS variable to retain value after page refresh? [duplicate]
...e, but this can be overcome by using JSON.stringify and JSON.parse. Technically, whenever you call .setItem(), it will call .toString() on the value and store that.
MDN's DOM storage guide (linked below), has workarounds/polyfills, that end up falling back to stuff like cookies, if localStorage isn...
Difference between Python's Generators and Iterators
...ry generator is an iterator, but not vice versa. A generator is built by calling a function that has one or more yield expressions (yield statements, in Python 2.5 and earlier), and is an object that meets the previous paragraph's definition of an iterator.
You may want to use a custom iterator, ra...
Evaluating a mathematical expression in a string
...p://pyparsing.wikispaces.com/message/view/home/15549426
'''
__note__ = '''
All I've done is rewrap Paul McGuire's fourFn.py as a class, so I can use it
more easily in other places.
'''
class NumericStringParser(object):
'''
Most of this code comes from the fourFn.py pyparsing example
...
How to create module-wide variables in Python? [duplicate]
...
Here is what is going on.
First, the only global variables Python really has are module-scoped variables. You cannot make a variable that is truly global; all you can do is make a variable in a particular scope. (If you make a variable inside the Python interpreter, and then import other mo...
Difference between java.lang.RuntimeException and java.lang.Exception
...
Generally RuntimeExceptions are exceptions that can be prevented programmatically. E.g NullPointerException, ArrayIndexOutOfBoundException. If you check for null before calling any method, NullPointerException would never occur. ...
iOS 8 removed “minimal-ui” viewport property, are there other “soft fullscreen” solutions?
...ents of the main element). Disabling document scrolling
prevents accidentally leaving the minimal-ui when scrolling upwards.
As per the original iOS 7.1 spec, tapping the top bar brings back the
rest of the chrome.
The end result looks like this:
For the sake of documentation, and in case...
SQLAlchemy: What's the difference between flush() and commit()?
...
A Session object is basically an ongoing transaction of changes to a database (update, insert, delete). These operations aren't persisted to the database until they are committed (if your program aborts for some reason in mid-session transaction, any...
Android Drawing Separator/Divider Line in Layout?
... of other items like TextView. Is there a good widget for this. I don't really want to use an image as it would be hard to match the other components to it. And I want it to be relatively positioned as well. Thanks
...
What does ellipsize mean in android?
...an EditText to my layout, and added a hint, and made it centered horizontally.
9 Answers
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Why use bzero over memset?
...e used if you want to ensure the compiler doesn't quietly optimize-away a call to "scrub" memory for some security-related purpose (such as blanking-out a region of memory that contained a sensitive piece of information such as a cleartext password).
– Christopher Schultz
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