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JavaScript: client-side vs. server-side validation
...There are some validations that can't even be properly done in server-side application code, and are utterly impossible in client-side code, because they depend on the current state of the database. For example, "nobody else has registered that username", or "the blog post you're commenting on still...
Heroku free account limited?
...database
Heroku provides, for free, 1 dyno. A dyno is an instance of your application running and responding to requests. If each instance of your application can serve each request in 100ms, then you get 600 requests/minute with the free account.
Your application code and its assets (the slug) ar...
Example for boost shared_mutex (multiple reads/one write)?
I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updat...
Merging two images in C#/.NET
...
basically i use this in one of our apps:
we want to overlay a playicon over a frame of a video:
Image playbutton;
try
{
playbutton = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
Image frame;
try
{
frame = Image.FromFile(...
Static table view outside UITableViewController
After the new Xcode update, my app doesn't validate and shows this error:
4 Answers
4
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How to convert a Title to a URL slug in jQuery?
I'm working on an app in CodeIgniter, and I am trying to make a field on a form dynamically generate the URL slug. What I'd like to do is remove the punctuation, convert it to lowercase, and replace the spaces with hyphens. So for example, Shane's Rib Shack would become shanes-rib-shack.
...
Two versions of python on linux. how to make 2.7 the default
...guess is that /usr/bin/python wasn't actually a symlink before, it was a wrapper script or executable, and now you've overwritten it and can't get it back. If rpm is still working, you can manually download the Python package and install it without yum.
– abarnert
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How to generate string of a certain length to insert into a file to meet a file size criteria?
...ment to test some load issues with regards to file size. I have a windows application written in C# which will automatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the req...
Avoiding SQL injection without parameters
...mptions you make about security, might be incorrect. As secure as your own approach may look (and it looks shaky at best), there's a risk you're overlooking something and do you really want to take that chance when it comes to security?
Use parameters.
...
Show or hide element in React
... component in the click handler using setState. When the state changes get applied, the render method gets called again with the new state:
var Search = React.createClass({
getInitialState: function() {
return { showResults: false };
},
onClick: function() {
thi...