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Finding the index of elements based on a condition using python list comprehension
...list.indices(lambda x: x==1)
I elaborated a bit more on that topic here:
http://tinyurl.com/jajrr87
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...
Documentation for crypto: http://nodejs.org/api/crypto.html
const crypto = require('crypto')
const text = 'I love cupcakes'
const key = 'abcdeg'
crypto.createHmac('sha1', key)
.update(text)
.digest('hex')
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Difference between a Message Broker and an ESB
... give you a more clear view of what I feel is one fundamental difference.
http://www.udidahan.com/2011/03/24/bus-and-broker-pubsub-differences
Quoting:
The rule that there can only be a
single publisher for a given event
type is one of the things that
differentiates buses from brokers,
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What should I do if the current ASP.NET session is null?
...hich you will only rarely run into:
If you have disabled the SessionState http module, disabling sessions altogether
If your code runs before the HttpApplication.AcquireRequestState event.
Your code runs in an IHttpHandler, that does not specify either the IRequiresSessionState or IReadOnlySessionS...
How to echo with different colors in the Windows command line
...onsole.BackgroundColor;
var currentForeground=Console.ForegroundColor;
//http://stackoverflow.com/a/24294348/388389
var jsEscapes = {
'n': '\n',
'r': '\r',
't': '\t',
'f': '\f',
'v': '\v',
'b': '\b'
};
function decodeJsEscape(_, hex0, hex1, octal, other) {
var hex = hex0 || hex1;
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Best way to select random rows PostgreSQL
... slow
And a linked article of depez outlining several more approaches:
http://www.depesz.com/index.php/2007/09/16/my-thoughts-on-getting-random-row/
1 "large" as in "the complete table will not fit into the memory".
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How to link godaddy domain with AWS Elastic Beanstalk environment?
...zonaws.com) (with masking)
In order to access the site without www (e.g. http://example.com), I had to set up the forwarding of the domain to the www cname. This www cname then gets forwarded to the AWS EB domain (with masking in order to keep www.example.com in the address bar).
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Is there an equivalent of CSS max-width that works in HTML emails?
...an see what's going on, but obviously you wouldn't want one in real life:
http://jsfiddle.net/YcwM7/
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Turn a simple socket into an SSL socket
... an call it a day. Having SSL in a different process won't slow you down: http://vincent.bernat.im/en/blog/2011-ssl-benchmark.html
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Recursion in Angular directives
...use ng-repeat then you will not have to manually remove elements.
Demo: http://jsfiddle.net/KNM4q/113/
.directive('tree', function ($compile) {
return {
restrict: 'E',
terminal: true,
scope: { val: '=', parentData:'=' },
link: function (scope, element, attrs) {
var templa...