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Where does Scala look for implicits?
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Implicits in Scala refers to either a value that can be passed "automatically", so to speak, or a conversion from one type to another that is made automatically.
Implicit Conversion
Speaking very briefly about the latter type, if one calls a method m on an object o of a class C, and that class d...
rsync error: failed to set times on “/foo/bar”: Operation not permitted
I'm getting a confusing error from rsync and the initial things I'm finding from web searches (as well as all the usual chmod'ing) are not solving it:
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Error: Could not find or load main class in intelliJ IDE
...ollowing piece of code keeps does not even compile and keeps giving me the error:
36 Answers
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How can I get a resource “Folder” from inside my jar File?
... Don't think it is going to work if path is in a jar, will give this error on toURI conversion: java.lang.IllegalArgumentException: URI is not hierarchical
– tribbloid
Sep 3 '16 at 22:04
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Detecting an undefined object property
...e: different from having a value of undefined) identifier without an early error:
if(typeof myVariable === 'undefined') {
alert('myVariable is either the special value `undefined`, or it has not been declared');
}
In versions of JavaScript prior to ECMAScript 5, the property named "undefined" o...
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
...t;> A + B
Counter({'c': 7, 'b': 5, 'd': 5, 'a': 1})
Counters are basically a subclass of dict, so you can still do everything else with them you'd normally do with that type, such as iterate over their keys and values.
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How to enable cURL in PHP / XAMPP
...hp5-curl
sudo /etc/init.d/apache2 restart
You might have seen PHP Fatal error: Call to undefined function curl_init() before.
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Length of a JavaScript object
...an break enumerations in various libraries. Adding methods to Object is usually safe, though.
Here's an update as of 2016 and widespread deployment of ES5 and beyond. For IE9+ and all other modern ES5+ capable browsers, you can use Object.keys() so the above code just becomes:
var size = Object...
XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv
...g to load a script file like so $.getScript("application.js"); and get the error described in the question.
– Denzo
Jul 25 '12 at 4:17
1
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Cartesian product of multiple arrays in JavaScript
...S
Original 2017 Answer: 2-line answer with vanilla JS:
(see updates below)
All of the answers here are overly complicated, most of them take 20 lines of code or even more.
This example uses just two lines of vanilla JavaScript, no lodash, underscore or other libraries:
let f = (a, b) => [].concat...