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How to find the sum of an array of numbers
...resentation of JavaScript code. Using the Array.prototype.join function to convert the array to a string, we change [1,2,3] into "1+2+3", which evaluates to 6.
console.log(
eval([1,2,3].join('+'))
)
//This way is dangerous if the array is built
// from user input as it may be exploited ...
Shell - Write variable contents to a file
...s -- right now, any runs of whitespace within the variable's value will be converted to a single space, glob expressions will be expanded, etc.
– Charles Duffy
Jul 23 '12 at 19:54
...
node.js shell command execution
...an'], function (me, buffer){me.stdout+=buffer.toString();}
);
so that we convert our buffer into a string and append that string to our stdout variable.
Third is that you can only know you've received all output when you get the 'end' event, which means we need another listener and callback:
fun...
How do I execute a program from Python? os.system fails due to spaces in path
.... As mentioned above, Windows only understands double-quotes.
Python will convert forward-slashed to backslashes on Windows, so you can use
os.system('"C://Temp/a b c/Notepad.exe"')
The ' is consumed by Python, which then passes "C://Temp/a b c/Notepad.exe" (as a Windows path, no double-backslas...
How can I pad an integer with zeros on the left?
How do you left pad an int with zeros when converting to a String in java?
16 Answers
...
Exit single-user mode
...aster
GO
DECLARE @kill varchar(max) = '';
SELECT @kill = @kill + 'KILL ' + CONVERT(varchar(10), spid) + '; '
FROM master..sysprocesses
WHERE spid > 50 AND dbid = DB_ID('<Your_DB_Name>')
EXEC(@kill);
GO
SET DEADLOCK_PRIORITY HIGH
ALTER DATABASE [<Your_DB_Name>] SET MULTI_USER WITH NO...
Create table with jQuery - append
...
var filesizeInMB = (filesizeInBytes / (1024*1024)).toFixed(2); // convert the file size from bytes to mb
var filename = input.files[i].name;
select.append($('<tr><td>'+filename+'</td><td>'+filesizeInMB+'</td></tr>'));
totalsizeOfUp...
Get column index from column name in python pandas
...
Or when using libraries which want the DF converted to a numpy array and indices of columns with particular features. For example CatBoost wants a list of indices of categorical features.
– Tom Walker
Oct 13 '17 at 5:35
...
How to clear variables in ipython?
...
You could convert your script into a function to keep the global namespace clean.
– Robert Pollak
Feb 10 '15 at 9:56
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Importing files from different folder
... @kreativitea - sys.path returns a list, not a deque, and it'd be silly to convert the list to a deque and back.
– ArtOfWarfare
Nov 3 '13 at 20:35
40
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