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Possible reasons for timeout when trying to access EC2 instance
...ON @BrunoBronosky . Exactly, if that "Internet gateway" thingy is so must, then why default AWS documentation do not mention that? :(
– Anand
Jul 17 '15 at 3:52
1
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Why do you need to put #!/bin/bash at the beginning of a script file?
...ou are using. For example, you could very well write a javascript file and then put a #! /usr/bin/js (or something similar) to have a javascript "Shell script".
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Official way to ask jQuery wait for all images to load before executing something
...fore the images are loaded, because the DOM is ready at that point. If you then change:
$(document).ready(function() {
into:
$(window).on("load", function() {
then the alert box doesn't appear until after the images are loaded.
Hence, to wait until the entire page is ready, you could use some...
Using Git, how could I search for a string across all branches?
...command and get an error:
-bash: /usr/bin/git: Argument list too long"
then you should use xargs:
git rev-list --all | xargs git grep "string/regexp"
Also see How to grep (search) committed code in the Git history
sha...
How to use mysql JOIN without ON condition?
...2, 3, 4) would have 12 rows.
In practice, if you want to do a cross join, then use cross join:
from A cross join B
is much better than:
from A, B
and:
from A join B -- with no on clause
The on clause is required for a right or left outer join, so the discussion is not relevant for them.
I...
How to deal with SettingWithCopyWarning in Pandas?
...d based on common problems that encounter this warning, and solutions will then be presented.
Question 1
I have a DataFrame
df
A B C D E
0 5 0 3 3 7
1 9 3 5 2 4
2 7 6 8 8 1
I want to assign values in col "A" > 5 to 1000. My expected output is
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What is the equivalent of the C++ Pair in Java?
...
The thing is that if you disagree with Gratzner, then there's Pair implementations in several places. Apache Commons and Guava both have it IIRC. Use those. But to put something in the main Java libraries means that it's A Noble And Approved Way Of Doing Things (with capita...
Multiple “order by” in LINQ
...ies and categories , and I get an ordered list by categoryID first and then by Name .
7 Answers
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Is there a built-in method to compare collections?
...ictionary by key (which is unique, and thus the sort is always stable) and then use SequenceEqual. The following expression checks if two dictionaries are equal regardless of their internal order:
dictionary1.OrderBy(kvp => kvp.Key).SequenceEqual(dictionary2.OrderBy(kvp => kvp.Key))
EDIT:...
Long vs Integer, long vs int, what to use and when?
...va never passes a reference. If I call a function giving it an int[2], and then inside the function I change the value held in the first element of that array, will the function's caller see that change? Yes? Well that's because what was passed to the function wasn't the values in the array, but rat...