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Block Comments in Clojure
... arbitrary text. For example, (comment "print("/foo")") will die with the error Invalid token: /foo.
– John Wiseman
May 12 '17 at 20:50
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Add data annotations to a class generated by entity framework
...l be better use interfaces instead. In this case you will have compilation errors if EF model doesn't correspond to validation model. So you can modify your EF models without fear that validation rules are outdated.
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
nam...
How to calculate the difference between two dates using PHP?
...:diff()
* implementation by Derick Rethans. Ported to PHP by Emil H, 2011-05-02. No rights reserved.
*
* See here for original code:
* http://svn.php.net/viewvc/php/php-src/trunk/ext/date/lib/tm2unixtime.c?revision=302890&view=markup
* http://svn.php.net/viewvc/php/php-src/trunk/ext/date/l...
What's the difference between a Python “property” and “attribute”?
...a value < 0
"""
if value < 0:
raise ValueError("Must be >= 0")
self._x = value
>>> a = A()
>>> a._x = -1
>>> a.x = -1
Traceback (most recent call last):
File "ex.py", line 15, in <module>
a.x = -1
File "ex.py", li...
Why is parenthesis in print voluntary in Python 2.7?
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answered Aug 15 '12 at 17:05
Karlo SmidKarlo Smid
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Can a Byte[] Array be written to a file in C#?
I'm trying to write out a Byte[] array representing a complete file to a file.
8 Answers
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How to compare type of an object in Python?
... launch a long or resource-intensive process, it is valuable to catch type errors ahead of time, during some custom validation step. This has been a critical part of almost every scientific computing project I've ever worked on. Out of all dev projects I've seen, more have needed this than have not....
Use of def, val, and var in scala
...abels from def and val cannot be reassigned, and in case of any attempt an error like the below one will be raised:
scala> something = 5 * 6
<console>:8: error: value something_= is not a member of object $iw
something = 5 * 6
^
When the class is defined like:
scala> cl...
How to set custom favicon in Express?
...
smiley favicon to prevent error:
//const fs = require('fs');
//const favicon = fs.readFileSync(__dirname+'/public/favicon.ico'); // read file
const favicon = new Buffer.from('AAABAAEAEBAQAAAAAAAoAQAAFgAAACgAAAAQAAAAIAAAAAEABAAAAAAAgAAAAAAAAAAAAAA...
How do I start a process from C#?
How do I start a process, such as launching a URL when the user clicks a button?
12 Answers
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