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What does Ruby have that Python doesn't, and vice versa?
...(): print "goodbye"
func = func2
This is a fundamental feature of modern scripting languages. JavaScript and Lua do this, too. Ruby doesn't treat functions this way; naming a function calls it.
Of course, there are ways to do these things in Ruby, but they're not first-class operations. For ex...
In AngularJS, what's the difference between ng-pristine and ng-dirty?
...s us if the user has already typed anything in the related field:
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js"></script>
<form ng-app="" name="myForm">
<input name="email" ng-model="data.email">
<div class="info" ng-show="m...
How to make a promise from setTimeout
...
Update (2017)
Here in 2017, Promises are built into JavaScript, they were added by the ES2015 spec (polyfills are available for outdated environments like IE8-IE11). The syntax they went with uses a callback you pass into the Promise constructor (the Promise executor) which receiv...
Differences between Perl and PHP [closed]
...rray_splice to assign to a slice.
You can leave out the argument to the subscript operator in PHP for a bit of magic. In Perl, you can't leave out the subscript.
Perl hashes are unordered.
Perl has a large number of predefined and magic variables. PHP's predefined variables have quite a different pu...
How to use Git and Dropbox together effectively?
...want to go in and run this code for every single project, so I made a Bash script that will automate the process. You can use it on one or multiple directories - so it can do the code in this post for you or it can do it on multiple projects at once.
#!/bin/sh
# Script by Eli Delventhal
# Creates G...
Embed git commit hash in a .Net dll
... a complete step by step answer. The strategy here to is run a powershell script from the pre-build events that takes in a template file and generates an AssemblyInfo.cs file with the git tag + commit count information included.
Step 1: make an AssemblyInfo_template.cs file in the Project\Properti...
Table fixed header and scrollable body
...></tr>
</tbody>
</table>
</div>
<script src="https://code.jquery.com/jquery-3.1.0.js"></script>
Or plain ES6 if you prefer (no jQuery required):
// Fix table head
function tableFixHead (e) {
const el = e.target,
sT = el.scrollT...
What is the difference between char s[] and char *s?
... More precisely, GCC 4.8 puts it into .rodata, which the linker script then dumps into the same segment as .text. See my answer.
– Ciro Santilli 郝海东冠状病六四事件法轮功
Jun 5 '15 at 7:33
...
List of all index & index columns in SQL Server DB
...-----------------------------------------------
-- or to generate creation scripts put a simple wrapper around that
SELECT SchemaName, TableName, IndexName,
(CASE pk
WHEN 'PK' THEN 'ALTER '+
'TABLE '+SchemaName+'.'+TableName+' ADD CONSTRAINT '+IndexName+' PRIMARY KEY'+
(CASE substrin...
Create a nonclustered non-unique index within the CREATE TABLE statement with SQL Server
... aesthetic reasons. I thought it could be convenient to anyone reading the script if all constraints/indexes are contained within the same statement. Personally, I like to know whether columns belonging to a foreign key also have an index, and this may have been a nice method to logically group this...