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node and Error: EMFILE, too many open files
... opportunity to solve any problems arising from the use of this relatively raw interface. At the same time, it's really easy to publish solutions, and download those published by others through npm. Don't expect a lot of smarts from Node itself. Instead, expect to find the smarts in packages publish...
How does grep run so fast?
...actually looks at (and it skips many
bytes entirely).
GNU grep uses raw Unix input system calls and avoids copying data
after reading it. Moreover, GNU grep AVOIDS BREAKING THE INPUT INTO
LINES. Looking for newlines would slow grep down by a factor of
several times, because to find th...
How to get a DOM Element from a JQuery Selector
...
You can access the raw DOM element with:
$("table").get(0);
or more simply:
$("table")[0];
There isn't actually a lot you need this for however (in my experience). Take your checkbox example:
$(":checkbox").click(function() {
if ($(thi...
How does the Java 'for each' loop work?
...for each is also valid for arrays. e.g.
String[] fruits = new String[] { "Orange", "Apple", "Pear", "Strawberry" };
for (String fruit : fruits) {
// fruit is an element of the `fruits` array.
}
which is essentially equivalent of
for (int i = 0; i < fruits.length; i++) {
String fruit ...
Converting between strings and ArrayBuffers
...ticle.
Excerpt:
The Encoding API makes it simple to translate between raw bytes and native JavaScript strings, regardless of which of the many standard encodings you need to work with.
<pre id="results"></pre>
<script>
if ('TextDecoder' in window) {
// The local files...
Best architectural approaches for building iOS networking applications (REST clients)
... or build your own lightweight object mapping/persistence layer, based on raw SQLite or LevelDB. Also I advice you to familiarize yourself with the Domain Driven Design and CQRS.
At first, I think, we should create another layer for networking, because we don't want fat controllers or heavy, overwh...
Difference between array_map, array_walk and array_filter
... of the former array, as follows:
<?php
$array = array(1, "apples",2, "oranges",3, "plums");
$filtered = array_filter( $array, "ctype_alpha");
var_dump($filtered);
?>
live code here
All numeric values are filtered out of $array, leaving $filtered with only types of fruit.
array_map() als...
Moving matplotlib legend outside of the axis makes it cutoff by the figure box
... ,(0.5,0.5,0.5) #gray
,(0.5,0,0) #brown
,(1,0.5,0) #orange
]
import matplotlib.pyplot as plt
import numpy as np
import collections
df = collections.OrderedDict()
df['labels'] = ['GWP100a\n[kgCO2eq]\n\nasedf\nasdf\nadfs','human\n[pts]','ressource\n[pts]']
df...
When are you truly forced to use UUID as part of the design?
... @Chamnap I wrote UUIDTools. UUIDs can be converted to an integer or their raw byte form, and would be substantially smaller as a binary.
– Bob Aman
Jun 10 '12 at 14:21
1
...
How are parameters sent in an HTTP POST request?
...iables are stored as key-value pairs in the body.
You can see this in the raw content of an HTTP Post, shown below:
POST /path/script.cgi HTTP/1.0
From: frog@jmarshall.com
User-Agent: HTTPTool/1.0
Content-Type: application/x-www-form-urlencoded
Content-Length: 32
home=Cosby&favorite+flavor=fl...