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Simple (non-secure) hash function for JavaScript? [duplicate]
... hash = ((hash<<5)-hash)+char;
hash = hash & hash; // Convert to 32bit integer
}
return hash;
}
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How to reverse a singly linked list using only two pointers?
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Any alternative? No, this is as simple as it gets, and there's no fundamentally-different way of doing it. This algorithm is already O(n) time, and you can't get any faster than that, as you must modify every node.
It looks like your code is on the right track, but it's not...
Java String - See if a string contains only numbers and not letters
I have a string that I load throughout my application, and it changes from numbers to letters and such. I have a simple if statement to see if it contains letters or numbers but, something isn't quite working correctly. Here is a snippet.
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How to parse Excel (XLS) file in Javascript/HTML5
...with it. I need to read xls file row-wise, read data in every column and convert it to JSON.
11 Answers
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Declaring and initializing variables within Java switches
... block in which the declaration appears, starting with its own initializer and including any further declarators to the right in the local variable declaration statement.
In your case, case 2 is in the same block as case 1 and appears after it, even though case 1 will never execute... so the local...
Difference between final and effectively final
I'm playing with lambdas in Java 8 and I came across warning local variables referenced from a lambda expression must be final or effectively final . I know that when I use variables inside anonymous class they must be final in outer class, but still - what is the difference between final and ef...
Java Naming Convention with Acronyms [closed]
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@DerFlatulator: it's a question of automation when converting from UpperCamelCase to lowerCamelCase: I had the problem when automating Hibernate mapping to a snake_case: DvdPlayer -> dvd_player but DVDPlayer -> d_v_d_player. There is no way to automate DVDPlayer to dvd_...
How to print time in format: 2009‐08‐10 18:17:54.811
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It's an even better answer now, and props for looking up how to handle the millisecond part. I think your buffer is now a little longer than it needs to be, though.
– Jack Kelly
Sep 9 '10 at 3:56
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pandas GroupBy columns with NaN (missing) values
...cient topic, if someone still stumbles over this--another workaround is to convert via .astype(str) to string before grouping. That will conserve the NaN's.
df = pd.DataFrame({'a': ['1', '2', '3'], 'b': ['4', np.NaN, '6']})
df['b'] = df['b'].astype(str)
df.groupby(['b']).sum()
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b
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Different font size of strings in the same TextView
I have a textView inside with a number (variable) and a string , how can I give the number one size larger than the string ?
the code:
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