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Is there an interactive way to learn Vim? [closed]
Years ago I was looking for a way to learn Vim that didn't involve a wall of text, or scrolling through vimtutor without knowing the commands to do so. I wondered if anything else existed for such a purpose.
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What are best practices for validating email addresses on iOS 2.0
...o validate an email address explains in great detail that the grammar specified in RFC 5322 is too complicated for primitive regular expressions.
I recommend a real parser approach like MKEmailAddress.
As quick regular expressions solution see this modification of DHValidation:
- (BOOL) validat...
Return a value if no rows are found in Microsoft tSQL
...uch, much, much better simply to check the number of records in the result set.
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Call UrlHelper in models in ASP.NET MVC
...g info
Example:
public class MyModel
{
public int ID { get; private set; }
public string Link
{
get
{
UrlHelper url = new UrlHelper(HttpContext.Current.Request.RequestContext);
return url.Action("ViewAction", "MyModelController", new { id = this...
How are 3D games so efficient? [closed]
...s and special techniques exist when you're developing against a particular set of hardware, to enable even better speedups.
The other part of your question is why a demo uses so much CPU:
... while a DX demo of a rotating Teapot @ 60fps uses a whopping 30% ?
It's common for demos of graphics...
bootstrap modal removes scroll bar
...ecomes to high.
If you always want a scrollbar (designers often do)
First set the body
body {
overflow-y:scroll;
}
Then handle .modal-open
.modal-open .modal {
overflow-y:scroll; /* Force a navbar on .modal */
}
.modal-open .topnavbar-wrapper {
padding-right:17px; /* Noticed that r...
How to hash some string with sha256 in Java?
...ically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(byte[], St...
How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War
I am in the process of setting up a new Mac for work. I have installed Grunt & Grunt CLI globally. Then I did a npm install inside a project folder to install all dependencies.
...
How can I use xargs to copy files that have spaces and quotes in their names?
...er is simple, effective, and straight to the point : the default delimiter set for xargs is too broad and needs to be narrowed for what OP wants to do. I know this first-hand because I ran into this exact same issue today doing something similar, except in cygwin. Had I read the help for xargs comma...
Union of dict objects in Python [duplicate]
...? Browse other questions tagged python dictionary associative-array idioms set-operations or ask your own question.