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Converting a column within pandas dataframe from int to string
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@DmitryKonovalov in python strings are immutable, so whenever you manipulating the data, you have to put the result back in to the variable.
– Sriram Arvind Lakshmanakumar
Jan 10 '19 at 10:36
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'any' vs 'Object'
...rror: c neither has doSomething nor inherits it from Object
and why
a.toString(); // Ok: whatever, dude, have it your way
b.toString(); // Ok: toString is defined in Object
c.toString(); // Ok: c inherits toString from Object
So Object and {} are equivalents in TypeScript.
If you declare funct...
MySQL remove all whitespaces from the entire column
...` = REPLACE(`col_name`, '\n', '')
http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_replace
To remove first and last space(s) of column :
UPDATE `table` SET `col_name` = TRIM(`col_name`)
http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_trim
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Why is subtracting these two times (in 1927) giving a strange result?
If I run the following program, which parses two date strings referencing times 1 second apart and compares them:
10 Answer...
What is the difference between Digest and Basic Authentication?
...tion uses base64 encoding(not encryption) for generating our cryptographic string which contains the information of username and password. HTTP Basic doesn’t need to be implemented over SSL, but if you don’t, it isn’t secure at all. So I’m not even going to entertain the idea of using it wit...
How can I get the timezone name in JavaScript?
...he timeZone property is set to undefined rather than the user’s timezone string. As best as I can tell, at the time of writing (July 2017) all current browsers except for IE11 will return the user timezone as a string.
sha...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...best to use in your situation.
From MSDN's "New Recommendations for Using Strings in Microsoft .NET 2.0"
Summary: Code owners previously using the InvariantCulture for string comparison, casing, and sorting should strongly consider using a new set of String overloads in Microsoft .NET 2.0. Spec...
Convert xlsx to csv in Linux with command line
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The Gnumeric spreadsheet application comes with a command line utility called ssconvert that can convert between a variety of spreadsheet formats:
$ ssconvert Book1.xlsx newfile.csv
Using exporter Gnumeric_stf:stf_csv
$ cat newfile.csv
Foo,Bar,Baz
1,2,3
123.6,7.89,
2012/05/14,,
The,last,Line
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Why use the yield keyword, when I could just use an ordinary IEnumerable?
...uence.
Consider the following code:
class Program
{
static void Main(string[] args)
{
Console.WriteLine(string.Join(", ", Fibonacci().Take(10)));
Console.WriteLine(string.Join(", ", Fibonacci().Skip(15).Take(1)));
Console.WriteLine(string.Join(", ", Fibonacci().Skip...
Show Image View from file path?
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Almost: ´decodeFile´ takes a String and not a ´java.io.File´.
– Martin
Apr 29 '11 at 11:51
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