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Read entire file in Scala?
What's a simple and canonical way to read an entire file into memory in Scala? (Ideally, with control over character encoding.)
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Node.js Logging
...le and also I need an options like rolling out the file after certain size or date.
9 Answers
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Limit a stream by a predicate
...ble with a Java 8 Stream, but it can't necessarily be done efficiently -- for example, you can't necessarily parallelize such an operation, as you have to look at elements in order.
The API doesn't provide an easy way to do it, but what's probably the simplest way is to take Stream.iterator(), wrap...
How to read the RGB value of a given pixel in Python?
...mage.jpg") , how can I get the RGB values of a pixel assuming I have the coordinates of the pixel?
13 Answers
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Operator Overloading with C# Extension Methods
...ion methods must be in static classes, and static classes can't have operator overloads. But the feature is being discussed for some future release of C#. Mads talked a bit more about implementing it in this video from 2017.
On why it isn't currently implemented, Mads Torgersen, C# Language PM says:...
Multiple Indexes vs Multi-Column Indexes
...t that with Multi-Column indexing the first index column is always usable for searching and when you search only by 'state' it is efficient but yet not as efficient as Single-Column index on 'state'
I guess the answer you are looking for is that it depends on your where clauses of your frequently u...
endsWith in JavaScript
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UPDATE (Nov 24th, 2015):
This answer is originally posted in the year 2010 (SIX years back.) so please take note of these insightful comments:
Shauna - Update for Googlers - Looks like ECMA6 adds this function. The MDN article also shows a polyfill. https://devel...
What is the difference between include and require in Ruby?
..."extend" classes with
other modules (usually referred to as
mix-ins). For example, if your class
defines the method "each", you can
include the mixin module Enumerable
and it can act as a collection. This
can be confusing as the include verb
is used very differently in other
language...
Is it safe to delete a NULL pointer?
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delete performs the check anyway, so checking it on your side adds overhead and looks uglier. A very good practice is setting the pointer to NULL after delete (helps avoiding double deletion and other similar memory corruption problems)...
How to catch curl errors in PHP
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You can use the curl_error() function to detect if there was some error. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $your_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true); // Required for HTTP error codes to be reported via our ...