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Javascript: Setting location.href versus location
...back in JavaScript 1.0 and every browser since has implemented that. HTML5 now requires it. So whilst it may be prettier or more consistent to assign to .href, there is no backward or forward compatibility advantage to doing so.
– bobince
Nov 12 '12 at 22:36
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When should I use nil and NULL in Objective-C?
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This accepted answer fails to acknowledge that [NSNull null] is a very different beast. To quote from NSNull Class Reference, "The NSNull class defines a singleton object used to represent null values in collection objects (which don’t allow nil values)." ...
When is null or undefined used in JavaScript? [duplicate]
...t. So you can just do this: var undefined = "Magic!"; // Yes this works Now your code may or may not work. It is better to do a typeof(x) !== "undefined"
– ProVega
Apr 17 '14 at 21:29
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What is the purpose of the HTML “no-js” class?
... here, but it seems to me that .js { padding: ...} is just fine since you know as the one who implemented it that body = .js. More directly to your point, it seems you are claiming that body.js is worse than .js body which I am not following...
– wired_in
Mar 1...
How to get the first non-null value in Java?
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That method is now deprecated, and the recommended alternative is MoreObjects.firstNonNull
– davidwebster48
Feb 17 '15 at 0:58
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Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
...look like a duplicate of: How to uninstall postgresql on my Mac (running Snow Leopard) however, there are two major differences. I'm running Lion and I'm trying to uninstall PostgreSQL 9.0.4. I've looked at the last question and the link that it referenced, but I did not find a file called "uninst...
Is there a visual profiler for Python? [closed]
I use cProfile now but I find it tedious to write pstats code just to query the statistics data.
12 Answers
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Insert a row to pandas dataframe
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A B C
0 NaN NaN NaN
1 5 6 7
2 7 8 9
But now you can easily insert the row as follows. Since the space was preallocated, this is more efficient.
>>> df2.loc[0] = np.array([2, 3, 4])
>>> df2
Out[341]:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
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Is it possible to focus on a using JavaScript focus() function?
... default and have semantic information baked in to assist users. Use this knowledge wisely.
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Vibrate and Sound defaults on notification
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The vibration now has a delay of 1000 ms. If you set the first one to 0, it will go off instantly. It's a { delay, vibrate, sleep, vibrate, sleep } pattern.
– Tom
Apr 30 '15 at 11:22
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