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How to determine a user's IP address in node
...de of the package request-ip at github.com/pbojinov/request-ip/blob/master/index.js it checks x-forwarded-for and all sorts of other headers for popular load balancers like AWS ELB, Cloudflare, Akamai, nginx, Rackspace LB and Riverbed's Stingray
– Giorgio
Oct 1...
Usage of __slots__?
...eap()
Partition of a set of 2028259 objects. Total size = 99763360 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 1000000 49 64000000 64 64000000 64 __main__.Foo
1 169 0 16281480 16 80281480 80 list
2 1000000 49 16000000 16 96281480 ...
How to remove an HTML element using Javascript?
...
index.html
<input id="suby" type="submit" value="Remove DUMMY"/>
myscripts.js
document.addEventListener("DOMContentLoaded", {
//Do this AFTER elements are loaded
document.getElementById("suby").addEventListener...
How to get the last element of an array in Ruby?
...
Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1] # => 6
or Array#last method:
a.last # => 5
b.last # => 6
...
When should I use Arrow functions in ECMAScript 6?
...render = function () {
var book = this;
this.$pages.each(function (index) {
var $page = $(this);
book.draw(book.currentPage + index, $page);
});
};
We must use function in order for each to bind this dynamically. We can't use an arrow function here.
Dealing with multip...
Why is it said that “HTTP is a stateless protocol”?
...contains a form), and
URL-rewriting using URI-encoded parameters, e.g., /index.php?session_id=some_unique_session_code.
What makes the protocol stateless is that the server is not required to track state over multiple requests, not that it cannot do so if it wants to. This simplifies the con...
rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
I made a basic rails app with a simple pages controller with an index function and when I load the page I get:
14 Answers
...
How do I check if an array includes a value in JavaScript?
...e', 'jane', 'mary'].includes('jane')); //true
You can also use Array#indexOf, which is less direct, but doesn't require polyfills for outdated browsers.
Many frameworks also offer similar methods:
jQuery: $.inArray(value, array, [fromIndex])
Underscore.js: _.contains(array, value) (also alia...
Import a module from a relative path
...ed abspath. Also os.path.dirname can be used instead of split, makeing the indexing [0] obsolete. The line would then be: os.path.realpath(os.path.dirname(inspect.getfile(inspect.currentframe())))
– ted
Aug 14 '12 at 7:37
...
phonegap open link in browser
... Preferably the top of your JavaScript file that you load into your index.html page (your website, if that helps)
– bozdoz
Jan 25 '18 at 22:38
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