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Python - List of unique dictionaries
...in string form is JSON format. And Python has a built-in module for JSON (called json of course).
The remaining problem is that the elements in a dict are not ordered, and when Python converts the dict to a JSON string, you might get two JSON strings that represent equivalent dictionaries but are ...
Trigger change event of dropdown
....trigger('change');
});
You must declare the change event handler before calling trigger() or change() otherwise it won't be fired. Thanks for the mention @LenielMacaferi.
More information here.
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How to get last N records with activerecord?
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Calling #find(:all) is deprecated. Call #all directly instead.
– Snowcrash
Jun 29 '13 at 17:50
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Confused about __str__ on list in Python [duplicate]
...t uses str() for the list itself, but the implementation of list.__str__() calls repr() for the individual items.
So you should also overwrite __repr__(). A simple
__repr__ = __str__
at the end of the class body will do the trick.
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How to access parent Iframe from JavaScript
Well, I have an IFrame, which calls a same domain page.
My problem is that I want to access some information from this parent Iframe from this called page (from JavaScript). How can I access this Iframe?
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How to save an activity state using save instance state?
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CAREFUL: you need to call super.onSaveInstanceState(savedInstanceState) before adding your values to the Bundle, or they will get wiped out on that call (Droid X Android 2.2).
– jkschneider
Apr 13 '11 at 18...
Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I
...rver without some giant convoluted created function or executed sql string call, both of which are terrible solutions:
create a temp table
openrowset your stored procedure data into it
EXAMPLE:
INSERT INTO #YOUR_TEMP_TABLE
SELECT * FROM OPENROWSET ('SQLOLEDB','Server=(local);TRUSTED_CONNECTION=...
Selenium wait until document is ready
...letely? I want something generic, I know I can configure WebDriverWait and call something like 'find' to make it wait but I don't go that far. I just need to test that the page loads successfully and move on to next page to test.
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How do I create delegates in Objective-C?
...elegate webViewDidStartLoad:self];
}
The delegate property itself is typically declared weak (in ARC) or assign (pre-ARC) to avoid retain loops, since the delegate of an object often holds a strong reference to that object. (For example, a view controller is often the delegate of a view it contain...
Using async/await for multiple tasks
...locks each thread that each operation runs on. For example, if the network call takes 2 seconds, each thread hangs for 2 seconds w/o doing anything but waiting.
int[] ids = new[] { 1, 2, 3, 4, 5 };
Task.WaitAll(ids.Select(i => DoSomething(1, i, blogClient)).ToArray());
On the other hand, the a...