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javac : command not found
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I don't know exactly what yum install java will actually install. But to check for javac existence do:
> updatedb
> locate javac
preferably as root. If it's not there you've probably only installed the Java runtime (JRE) and ...
type object 'datetime.datetime' has no attribute 'datetime'
...python 3.3
from datetime import datetime, timedelta
futuredate = datetime.now() + timedelta(days=10)
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append multiple values for one key in a dictionary [duplicate]
...e seen a digit associated with a year or not. You just append and forget, knowing that a missing key will always be a list. If a key already exists, then it will just be appended to.
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Useful code which uses reduce()? [closed]
...The other uses I've found for it besides + and * were with and and or, but now we have any and all to replace those cases.
foldl and foldr do come up in Scheme a lot...
Here's some cute usages:
Flatten a list
Goal: turn [[1, 2, 3], [4, 5], [6, 7, 8]] into [1, 2, 3, 4, 5, 6, 7, 8].
reduce(list...
Multiple cases in switch statement
...ault in Visual Studio 2017/.NET Framework 4.6.2), range-based switching is now possible with the switch statement and would help with the OP's problem.
Example:
int i = 5;
switch (i)
{
case int n when (n >= 7):
Console.WriteLine($"I am 7 or above: {n}");
break;
case in...
jQuery.active function
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This is now called $.active, btw.
– Ryan Bigg
Jul 5 '13 at 6:20
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How can I pad a value with leading zeros?
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Now you just need to take care of numbers like 50.1234 and you've got a readable version of my solution below! I did, however, assume that we were just left padding, not overall padding.
– coderjoe
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Fastest exit strategy for a Panic Button in Crisis/Abuse Websites? [closed]
... to that page, click the button, visit another page, then hit back, you're now on 54.186.79.95/decoywebsite and there's no record of you being on 54.186.79.95/, if cache is disabled, your server will see the "../decoywebsite" request and send a decoy page. Unfortunately, you can't modify the entire ...
How do I get the difference between two Dates in JavaScript?
...g(Math.floor(((b - a) % msDay) / msMinute) + ' full minutes between');
Now some pitfalls. Try this:
console.log(a - 10);
console.log(a + 10);
So if you have risk of adding a number and Date, convert Date to number directly.
console.log(a.getTime() - 10);
console.log(a.getTime() + 10);
My f...
How can I sort a dictionary by key?
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python 3.7+ shouldn't need orderedDict since it now orders by default :-)
– Aneuway
Jan 25 '19 at 18:09
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